- 15 C.F.R. Part 272 — Marking of Toy, Look-Alike, and Imitation Firearms
Applicability, prohibitions, approved markings (§ 272.3), waiver and preemption for imitation firearms; the 1 Jan 2025 CFR edition.
- 15 U.S.C. § 5001 — Penalties for Entering into Commerce of Imitation Firearms
The federal statute requiring approved markings on toy, look-alike and imitation firearms.
- 3M Diamond Grade DG3 Reflective Sheeting Series 4090 — Product Bulletin (October 2020)
R_A (coefficient of retroreflection) tables used in the dive's link budget for retroreflective targets.
- 5.56mm Enfield Weapon System: User Handbook (Royal Ordnance, 1985)
Royal Ordnance's user handbook for the SA80 family (copyright 1985; the hosted file is named 1986): technical data, operation, sights, stripping and assembly, cleaning, settings and functional failures. The SA80 dive takes its mechanism, maintenance and stoppage drills from it.
- A Comparison of Proposed Small Arms Weapon Systems — BRL Memorandum Report No. 1139 (1958)
A Ballistic Research Laboratories comparison of proposed small-arms systems, April 1958. The Hyper-Burst Mechanisms dive cites it among the post-SALVO studies of multiple-projectile and burst weapons.
- A Test of Salvo Rifle Material (Aberdeen Proving Ground, 1957)
An Aberdeen Proving Ground test report (declassified) on SALVO-programme materiel, including duplex and triplex rounds fired from modified M1 rifles and flechette loads from a shotgun. Held with the Hyper-Burst Mechanisms dive's SALVO sources; not cited in its volumes.
- A-TEC MP7 Suppressor — Catalogue Data (2020)
A-TEC's 2020 catalogue data for the MP7 suppressor, cited alongside the 2023 sheet by the HK MP7 dive.
- A-TEC MP7 Suppressor — Data Sheet (2023)
A-TEC's 2023 data sheet for its all-steel MP7 suppressor. Cited by the HK MP7 dive's suppressor section.
- A123 Systems ANR26650M1-B Nanophosphate High Power Lithium Ion Cell — Data Sheet (MD100113-01)
The LiFePO4 reference cell.
- Accessories Programme MP7 A1, 4.6 mm × 30 (Heckler & Koch, 2012)
H&K's catalogue of MP7A1 accessories (v003.09.12). The HK MP7 dive cites it for the factory accessories, suppressors and mounts.
- Acorn Support Group Application Note 238 — Connector Pinouts (Electron, BBC B/B+, Master)
2 August 1993 connector reference: analogue port pin 9 is the light-pen strobe (LPSTB).
- Advanced Combat Rifle (ACR) Program, Volume I, ACR Program Summary — ARCCD-TR-92001 (1992)
The US Army's summary report of the Advanced Combat Rifle programme (Picatinny Arsenal, February 1992; DTIC AD-B162 942), with the contractor synopsis in Appendix B. The Hyper-Burst Mechanisms dive's main source for the H&K G11 and the other ACR entries in the US test; the Daisy dive cites it on caseless ammunition.
- Aliens Armageddon — Setup and Operation Service Manual (rev. AA-1.00-1.28.14-1)
Camera assembly, gun potentiometers and the solenoid knocker.
- Allegro A1324 / A1325 / A1326 Low-Noise Linear Hall-Effect Sensor ICs — Datasheet
Ratiometric analogue linear Hall sensors; 4.5–5.5 V supply, which is why the light-gun trigger design rejected them for a 3.3 V board.
- Alpha & Omega AO3400A 30 V N-Channel MOSFET — Datasheet
SOT-23 logic-level MOSFET specified at VGS = 2.5 V; the rumble-motor switch in the reference electronics.
- Alpha & Omega AOD4184A 40 V N-Channel MOSFET — Datasheet
The part on the common 'D4184' hobby MOSFET modules; gate threshold up to 2.6 V, which matters when driving it from a 3.3 V microcontroller.
- Alps Alpine SKRH Series 4-Direction Switch with Center Push — Catalogue Sheet
The picked five-way switch (SKRHABE010).
- Amiga Hardware Reference Manual, 3rd Edition
'Reading a light pen': the beam-trigger pin 6, the VPOSR latch and port selection by model. Downsampled to 150 dpi.
- ams OSRAM AS5600 12-bit Magnetic Rotary Position Sensor — Datasheet (v1-06)
Contactless angle sensor for a mounted (positional) gun's axes.
- ams OSRAM AS5600L 12-bit Magnetic Rotary Position Sensor — Datasheet
AS5600 variant with a programmable I2C address, so two axes share one bus.
- ams OSRAM SFH 4547 850 nm Infrared Emitter — Datasheet (v1.7)
5 mm high-power 850 nm IR LED; the emitter OpenFIRE's guides name.
- Amstrad CPC6128 — User Instructions
Joystick and expansion socket pinouts (L.PEN on pin 47) and the LP-1 light pen. Downsampled to 150 dpi.
- An Efficient Orientation Filter for Inertial and Inertial/Magnetic Sensor Arrays
The 30 April 2010 internal report that introduced the Madgwick gradient-descent orientation filter.
- Analog Devices ADXL1001 / ADXL1002 Low-Noise High-Frequency MEMS Accelerometers — Datasheet (Rev. A)
Single-axis analogue ±100 g / ±50 g MEMS accelerometers with a DC–11 kHz response; a candidate for measuring solenoid recoil impulses on the bench.
- Analog Devices ADXL375 3-Axis ±200 g Digital MEMS Accelerometer — Datasheet (Rev. B)
Three-axis ±200 g digital (SPI/I2C) accelerometer with a FIFO and shock detection; the digital alternative for recoil measurement.
- Analog Devices TMP35 / TMP36 / TMP37 Low-Voltage Temperature Sensors — Data Sheet (Rev. H)
Analogue temperature sensors; the TMP36 is the one the OpenFIRE firmware reads to protect the solenoid.
- Anleitung zur Kenntnis und Behandlung der Pistole 1900/06 (Swiss Army, 1911)
The Swiss Army's manual for the Parabellum Pistole 1900/06, approved by the Federal Council on 31 January 1911: parts, accessories, stripping and assembly, handling, functioning, cleaning, ammunition and data. The Luger P08 dive takes the Swiss service data (7.65 mm, four grooves, one turn in 250 mm) and the takedown from it.
- ANSI/SAAMI Z299.3-2022 — Pressure and Velocity of Centerfire Pistol and Revolver Ammunition
SAAMI's American National Standard for centerfire pistol and revolver ammunition: pressure and velocity tables, test methods and cartridge and chamber drawings (approved 13 December 2022). Cited for cartridge pressures and dimensions by the HK Mk23, Ruby Pistol and HK MP7 dives.
- ANSI/SAAMI Z299.4-2015 — Centerfire Rifle Ammunition (Voluntary Industry Performance Standards)
The American National Standard for centerfire rifle sporting ammunition, published by SAAMI. 375 pages: pressure and velocity performance standards, the test-barrel and test-equipment specifications, and — the part a gunsmith reaches for — the full set of cartridge and chamber drawings plus the HEADSPACE GAUGES section (Section III), which gives the authoritative gauge dimensions for shoulder-, belt-, rim- and mouth-breeching cartridges. For each cartridge the F column's MIN and MAX are the GO and NO-GO gauge lengths, and the M column is the datum diameter the headspace dimension is measured to. NOTE: SAAMI defines no FIELD gauge — that is a commercial addition.
- Arma corta española (Monforte Moreno, ACAMI, 2026)
An academic communication of the Academia de las Ciencias y las Artes Militares (Sección de Prospectiva de la Tecnología Militar), 27 February 2026, surveying the Spanish handgun industry. The Ruby Pistol dive translates it for the Eibar industry around the Ruby.
- Armorers Manual for Maintenance and Repair of Rifle 4,92 mm, ACR — TD 2237, First Draft (Heckler & Koch, 1989)
H&K's first-draft armorer's manual (March 1989) for the 4.92 mm G11 ACR rifle submitted to the US test: technical description, principle of operation including the counter-recoil mechanism, maintenance and repair. The Hyper-Burst Mechanisms dive takes the G11's high-rate burst mechanism from it and reproduces its Figs. 2 and 17–19.
- Assemblée nationale, Question au Gouvernement n° 1108 (1999): GIAT Industries
A National Assembly question of January 1999 to the defence minister, with his answer, on GIAT Industries' strategic plan of 7 July 1998 and the rationalisation of its sites. Used in the MAS FR-F2 dive's research on the maker's decline.
- Assemblée nationale, Rapport d'information n° 3170 (2006): Giat Industries — suivi des mesures sociales d'accompagnement
A National Assembly information report of 20 June 2006 on the social measures accompanying the restructuring of Giat Industries, citing decree 90-582 of 9 July 1990. The MAS FR-F2 dive cites it for the end of small-arms making at Saint-Étienne.
- Atari Bug Hunt — Game Manual
XG-1 game for the XE Game System or an XL/XE computer.
- Atari Games Area 51 — Operator's Manual
Optic gun assemblies and calibration.
- Atari Games Maximum Force — 25" Dedicated Game Operation Manual
April 1997 manual: the 'Optical Gun Type' assembly, its lens and maintenance.
- Atari Personal Computer System — Operating System User's Manual and Hardware Manual (C016555, November 1980)
ANTIC's PENH/PENV light-pen registers, the trigger line on controller pin 6, the jack pinout and calibration advice.
- Atari STE Developer Addendum (25 May 1989)
Light gun/pen position registers FF9220/FF9222 and their accuracy by screen mode.
- Atari XE Game System — Owner's Manual (C033514)
Using the XG-1 light gun: 3–5 ft range, port 1.
- ATF FFL Newsletter (c. 1990–91) — MP-83 and MP-22 Pistols Classified as Machineguns
An undated FFL Newsletter (it reports a court decision of 13 September 1990) classing the Holmes MP-83 and MP-22 open-bolt pistols as machineguns because their design features are "similar to weapons identified in ATF Rulings 82-2, 82-8, and 83-5". The STEN dive cites it to show that ATF's position is design by design, not a blanket 1982 ban.
- ATF Firearms Curios or Relics List, January 1972 through April 2025 (ATF P 5300.11)
ATF's consolidated list of every curio-or-relic classification from 1972 to April 2025, including the NFA weapons removed from the Act as collector's items (Section IIIA). Many dives cite it to say whether a gun is C&R-eligible or has been removed from the NFA.
- ATF National Firearms Act Handbook (E-Publication 5320.8, 2009)
ATF's handbook to the National Firearms Act (revised April 2009): definitions, registration and transfer, DEWATs, amnesty periods, importation and the rulings in Appendix B. Several machine-gun and SMG dives quote it for what a private owner may and may not hold, and why an unregistered war trophy cannot now be registered.
- ATF NFA Handbook (2009), Appendix B — Rulings and ATF Articles
Appendix B of ATF's National Firearms Act Handbook, issued as a separate file: the published ATF rulings on NFA classification (auto sears, open-bolt semi-automatics such as Rul. 82-2, 82-8 and 83-5, and others). The MG 42 dive cites Rul. 82-2 from it for why an open-bolt semi-automatic copy is a machine gun; the STEN dive notes that its rulings are reprinted here.
- ATF Ruling 2006-2 — Devices Designed to Increase the Rate of Fire Are Machineguns
ATF's 2006 ruling that a device which, on a single pull of the trigger, starts an automatic firing cycle that continues until the trigger finger is released is a machinegun. Saved with the STEN dive's ATF rulings but not cited in any volume, so it is tagged to the Firearms project only.
- ATF Ruling 80-21 — Residence of Out-of-State College Students
ATF's ruling that an out-of-state college student may establish residence in the state where he lives during the school term. Held because earlier versions of the STEN dive cited a phantom "ATF Ruling 80-21" as a closed-bolt rule; this is the real 80-21, which the dive's correction notes cite.
- ATF Ruling 82-2 — The KG-9 Pistol Is a Machinegun
ATF's 1982 ruling that the open-bolt KG-9 pistol is a machinegun because it is designed to be readily converted to automatic fire. Cited by the STEN, Sterling Mk 7 and MG 42 dives for why an open-bolt semi-automatic copy of a submachine gun or machine gun is itself a machinegun.
- ATF Ruling 82-8 — The SM10 and SM11A1 Pistols and SAC Carbines Are Machineguns
ATF's 1982 ruling that the open-bolt SM10 and SM11A1 pistols and SAC carbines (semi-automatic MAC-type guns) are machineguns. Cited by the STEN and Sterling Mk 7 dives with Rulings 82-2 and 83-5.
- ATF Ruling 83-5 — The YAC STEN MK II Carbine Is a Machinegun
ATF's 1983 ruling that the YAC STEN MK II semi-automatic carbine, an open-bolt design with a fixed firing pin, is a machinegun under the NFA because it is readily restorable to automatic fire. The STEN dive's legal volume rests on it, and the Sterling Mk 7 dive applies it to open-bolt semi-automatic copies.
- Automatic Projector Calibration with Embedded Light Sensors (MERL TR2004-036)
Gray-code patterns from a projector, read by photodiodes, locate points on a screen: a sensing method for light guns.
- Automatic World, January 1936 (Vol. 6 No. 2)
Coin-machine trade monthly. Its report on the January 1936 coin machine show (p. 33) covers the launch of Seeburg's Ray-O-Lite Rifle Range. Downsampled to 150 dpi from the 219 MB scan.
- Automáticas eibarresas en la Gran Guerra (Calvó, 2008)
A four-page Spanish article by the Eibar arms historian Juan L. Calvó on the Eibar automatic pistols made for France in the First World War, beginning with the Gabilondo y Urresti Ruby. The Ruby Pistol dive translates it for the contract history and the subcontracting makers.
- B&T Rotex-LMX Kal. 4.6 mm × 30 — Suppressor Data Sheet
B&T's data sheet for the Rotex-LMX suppressor for the MP7 (DS_SD-123198-00-EN). Cited by the HK MP7 dive's suppressor section.
- B&T Suppressors Catalogue 2025
B&T's 2025 English-language suppressor catalogue, with its technical-specification table and company history. The HK Mk23 dive cites it for the current B&T cans that fit the pistol.
- Borchardt Automatic Pistol — DWM English Instruction Manual
The factory's English-language instructions for the Borchardt C-93 as sold by DWM: description, numbered parts, loading, takedown and reassembly with hand-position plates. The source of the factory takedown quoted in the Borchardt C-93 dive.
- Bosch Sensortec BMI270 6-Axis Smart Low-Power IMU — Datasheet (BST-BMI270-DS000-08, rev 1.6)
Alternative 6-axis IMU compared in the dive.
- C.I.P. TAB. IV — 7,63 Mauser Cartridge Dimension Sheet
The C.I.P. cartridge and chamber dimension sheet for the 7,63 Mauser (dated 84-06-14, revised 06-09-19), with maximum pressure. The Bergmann 1896/1897 and Borchardt C-93 dives use it for the 7.63 mm cartridge's dimensions against the earlier 7.65 Borchardt.
- C.I.P. TDCC Tab. I — 7,5 × 54 MAS Cartridge Dimension Sheet
The C.I.P. cartridge and chamber sheet for the 7,5 × 54 MAS (dated 07-05-14, revised 11-05-25). The MAS FR-F2 dive quotes its figures for the French service cartridge of the FR-F1.
- C96 Broomhandle Mauser — Disassembly Guide
Step-by-step field-strip and reassembly of the C96 Broomhandle.
- Carbine, Machine, STEN, 9 mm, Mk II — General Instructions: Handling, Stripping, Cleaning, Assembling (February 1942)
Nine-page official instruction leaflet issued with the Mk II in February 1942: general description, stripping and assembling, action of the mechanism, care and cleaning, stoppages and immediate action, handling and sighting, and filling the magazine.
- Carbines, Machine, STEN, 9 mm, Mks I, II & III — Illustrated Identification List (COD Weedon, August 1942)
The official illustrated parts identification list for the Mk I, II and III STEN, issued by the Central Ordnance Depot at Weedon in August 1942. Components are arranged by group (butt, body, magazine housing, breech block, trigger mechanism, barrel, magazine, accessories) with drawings and a key showing which Mark each part fits. The nearest thing to an official parts tree in public hands.
- Catalog of Enemy Ordnance Materiel (1945)
The US Army's wartime loose-leaf catalogue of German and Japanese ordnance, with specification sheets and photographs. This scan lacks the machine-gun pages the MG 42 dive looked for; the Mauser HSc dive used it to establish that the HSc is absent (its pistol coverage is the P.38 and the signal pistol).
- Cathode Ray Tube Phosphors Of Interest To The Experimenter (rev. 20100226)
A compilation of CRT phosphor P-numbers with colour and persistence.
- CIA Information Report — New Soviet 7.62 mm Semi-Automatic Carbine SKS, Submachine Gun, and 7.62 mm Pistol (14 April 1955, CONFIDENTIAL)
A thirteen-page CIA information report distributed 14 April 1955, classified CONFIDENTIAL and declassified in 2013 (CREST CIA-RDP82-00046R000500020007-7), reporting from the Soviet Zone of Austria and including a drawn sketch of the rifle. Two years of better access corrected the 1953 report's errors: this one has the SKS as semi-automatic and charged from a stripper clip through the top. Its real value is the security practice around the weapon and its AMMUNITION. On the range 'each marksman was flanked by a second soldier whose function it was to retrieve all ejected brass with his garrison cap (pilotka)', and every case was counted afterwards — the cartridge was classified, not just the rifle. The gate guard drew one of six obsolete PPSh submachine guns each company retained for occasions when personnel would be seen by Austrians: a cover weapon carried on strength so the real one stayed indoors. The report also names the rifle's manual, which was NOT classified and sat in the company orderly room.
- CIA Information Report — New Type Soviet Submachine Gun and Carbine (29 April 1953, SECRET)
A five-page CIA information report distributed 29 April 1953, classified SECRET / SECURITY INFORMATION and declassified in 2009 (CREST CIA-RDP80-00810A001000900006-5). Source: a member of the Krasnoselskiy Guards, Order of Aleksandr Nevskiy Rifle Regiment. It describes two new Soviet weapons issued alongside the old PPSh — the AK-47 and the SKS — with two hand-drawn memory sketches. NOTE: the report is marked UNEVALUATED and it gets two things about the carbine WRONG, which is exactly why it is worth reading: it says the carbine 'could be fired automatically or could fire single shots' (the SKS is semi-automatic only) and that 'the clip was placed into the magazine from the bottom part of the stock' (it is charged from a stripper clip through the top, over an open bolt). Its account of the SECRECY is first-hand and accurate: the weapons were military secrets issued only to the Leningrad and Far Eastern military districts, and only to troops in settlements away from inhabited localities.
- Civil Penalties; Notice of Adjusted Maximum Amounts (CPSC, 86 FR 68244, 1 December 2021)
The $120,000 per violation / $17,150,000 maximum civil penalties.
- Close Range Weapon — From "NBW" to "MP7 A1" (Heckler & Koch presentation, 2 March 2004)
H&K's 70-slide presentation of 2 March 2004 tracing the weapon from the NBW concept to the MP7A1, with a cutaway and the ammunition makers. The HK MP7 dive uses it for the development history.
- Close Range Weapon MP7 A1, Caliber 4.6 mm × 30 — Operators Manual (Heckler & Koch)
H&K's English operator's manual for the MP7A1 (a faxed copy dated 8 August 2011): safety, technical data, handling and operation, field stripping, function check and accessories. The HK MP7 dive's main source for the mechanism and maintenance; the FN P90 dive cites its data.
- Commissione parlamentare d'inchiesta sul rapimento e sulla morte di Aldo Moro — Bollettino, 25 July 2017
The Italian Chamber of Deputies bulletin of 25 July 2017 from the parliamentary inquiry into Aldo Moro's kidnapping and murder (1978), recording the commission's decision to have its consultants examine further the Škorpion used to kill Moro. Cited by the Škorpion vz. 61 dive (p. 212).
- Commodore 64 Programmer's Reference Guide
Control port 1 pin 6 (BUTTON A/LP) and the VIC-II LPX/LPY light-pen latch. Downsampled to 150 dpi.
- Commodore VIC-20 Programmer's Reference Guide
'Using a light pen on the VIC': pin 6 / user port pin 7 and registers $9006/$9007.
- Compression Molding of Fiber Glass/Epoxy Handguards for the SFLM Advanced Combat Rifle — ARCCB-TR-89017
An Army technical report on moulding handguards for the serial flechette launch mechanism (SFLM) Advanced Combat Rifle; its Fig. 1 shows the rifle. Held in the Hyper-Burst Mechanisms research; the identity of the SFLM rifle with AAI's ACR entry is not established there.
- ČOS 130511 — Příručka pro zkoušení a kontrolu malorážových nábojů (STANAG 4823 / AEP-97(A)), 2023
The Czech defence standard implementing NATO's manual of proof and inspection of small-calibre ammunition (STANAG 4823 / AEP-97(A)), Prague 2023: test procedures, test barrels and the weapons nominated for testing. The HK MP7 dive translates Annex 10-A1, which names the MP7 as the weapon used to test 4.6 × 30 ammunition, and the 5.7 mm test barrel in Annex 6-A.
- ČOS 130512 — Požadavky na zaměnitelné náboje 4,6 × 30 mm (STANAG 4820 / AOP-4820(A)), 2025
The Czech defence standard implementing STANAG 4820 Ed. 1 / AOP-4820(A), the NATO requirements for interchangeable 4.6 × 30 mm ammunition (Prague 2025). The HK MP7 dive translates sections 7.1–7.19 and Annex A for the cartridge's standardised specification.
- Cosel LCA75S 75 W Power Supply — Product Details
The 24 V supply rating in Sega cabinets (a product-page capture).
- Dayton Audio TT25-8 / TT25-16 PUCK Tactile Transducer Mini Bass Shaker — User Manual
Mounting and drive for a small tactile transducer.
- Department of the Treasury Study on the Sporting Suitability of Modified Semiautomatic Assault Rifles (ATF, 1998) — excerpts
Four sections of the April 1998 Treasury study that led to the ban on importing modified semi-automatic rifles: the Executive Summary, "Defining the Type of Weapon", the Determination and Exhibit 2, "Study Rifle Models", which lists the PSG1 and MSG90 among the H&K variants. Cited by the HK PSG1 and Steyr AUG dives for the 1989 and 1998 import decisions.
- Der Einfluss internationaler Entwicklung auf die Arbeitsfelder der Polizei (ASPiBGS vol. 7, 2001), incl. Pieper on police firearms
Volume 7 of Arbeiten zu Studium und Praxis im Bundesgrenzschutz (Lübeck, 2001). The HK PSG1 dive cites Gernot Pieper's chapter on current trends in police firearms (pp. 36–39) for German federal police use of the PSG1.
- Design and Develop a Simplified Serial Flechette Rifle — AAI Final Report (1974)
AAI Corporation's final report of May 1974 under contract DAAF03-72-C-0172 on a simplified serial flechette rifle. The Hyper-Burst Mechanisms dive cites it for the AAI line between the SPIW and the ACR.
- Deutscher Bundestag Drucksache 10/1721 (1984) — Kleine Anfrage: Kleinwaffenexporte
A Green parliamentary question of 5 July 1984 on West German small-arms exports, including whether the federally funded H&K G11 should see the G3's worldwide spread. Held with the Hyper-Burst Mechanisms dive's Bundestag sources; not cited in its volumes.
- Deutscher Bundestag Drucksache 11/6920 (1990) — Kleine Anfrage: Neuartige Gewehrsysteme und hülsenlose Munition (G 11)
A parliamentary question of 11 April 1990 on the development and introduction of new rifle systems and caseless ammunition (the G11). The Hyper-Burst Mechanisms dive cites it with the government's answer, Drucksache 11/7055.
- Deutscher Bundestag Drucksache 11/7055 (1990) — Antwort der Bundesregierung on the G 11
The federal government's answer of 3 May 1990 to Drucksache 11/6920 on the G11 and caseless ammunition, including the US purchase of G11 caseless technology for its ACR version. The Hyper-Burst Mechanisms dive quotes it on the G11's development and the US connection.
- Deutscher Bundestag Drucksache 12/4956 (1993) — Kleine Anfrage: Beschaffungsmaßnahmen für die Bundeswehr im Handfeuerwaffen- und Ausrüstungsbereich
An SPD parliamentary question of 13 May 1993 on Bundeswehr small-arms procurement, asking how many G11s and derived caseless weapons H&K, Royal Ordnance, the Bundeswehr and others held and whether series production was still planned. Cited by the Hyper-Burst Mechanisms dive.
- Deutscher Bundestag Drucksache 12/5240 (1993) — Antwort der Bundesregierung on small-arms procurement
The federal government's answer of 22 June 1993 to Drucksache 12/4956: the questions could not be answered openly "aus Geheimschutzgründen" and a classified reply went to the SPD's security spokesman. Cited by the Hyper-Burst Mechanisms dive.
- Digilent Analog Discovery Pro ADP3450 / ADP3250 — Specifications (rev 0924)
Specification sheet for the mixed-signal bench instrument chosen for the light-gun build: input ranges, buffer depth, single-ended inputs, no current input.
- Diodes AP33772S I2C USB PD3.1 EPR Sink Controller — Datasheet (DS46176)
The proposed AVS 24 V sink (UP-5).
- Diodes Inc. AL5809 60 V Two-Terminal Constant-Current LED Driver — Datasheet
Two-pin linear constant-current regulator in fixed current versions; a candidate driver for the IR emitter bars.
- DIY Adaptive Game Controllers (Adafruit Learning Guide)
The Xbox Adaptive Controller 3.5 mm switch convention, used for the pedal jack. PDF export last updated 2025-08-20.
- DIY MAC-10 Construction Guide (Practical Scrap Metal Small Arms Vol. 6)
Sheet-metal construction guide for a MAC-10-pattern submachine gun.
- DSP Y 1001B 9mm機関けん銃 — Ministry of Defense Specification for the 9 mm Machine Pistol (2003, rev. 2008 and 2010)
The Ministry of Defense procurement specification for the 9 mm machine pistol (the Minebea M9), 2003 with the 2008 and 2010 amendments: clauses 2.1–2.9, Table 1 and Figures 1 and 2. The Minebea PM-9 dive's primary source for the gun's official description.
- Dynalloy Flexinol Actuator Wire — Technical Data
Contraction force, current and cooling (relaxation) times by wire diameter.
- Eaton HV Supercapacitors, Cylindrical Cells — Technical Data 4376
Cell ESR, pulse capability, capacitance tolerance and short-circuit behaviour for high-power EDLC cells.
- Eaton PHB Supercapacitors, Cylindrical Pack — Technical Data 4402
5 V two-cell supercapacitor packs.
- Edmunds, "Some Thoughts on the Confederate LeMat Revolver" — ASAC Bulletin 100 (2009)
A collector of some fifty years who examined more than a hundred LeMats on the models, makers and Confederate deliveries. American Society of Arms Collectors Bulletin 100, pp. 24–28.
- Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation Firearms (NIST, 91 FR 7824, 19 February 2026)
Removes 15 CFR part 272 (the Commerce marking rule), leaving CPSC's 16 CFR part 1272.
- ES1, LPS and SELV Voltage and Source Requirements Summary
One-page table comparing IEC 62368-1 ES1/LPS with IEC 61140 and IEC 60364 SELV limits (60 V DC).
- Espressif ESP32-S3 Series Datasheet (v2.2)
Dual-core Xtensa LX7 MCU with Wi-Fi and Bluetooth LE; GPIO and ADC limits for the ESP32 alternative to the RP2040.
- Exidy Crossbow — Preliminary Manual
Optical adjustment test for the crossbow light gun.
- Exposé schématique du fonctionnement des armes de petit calibre (Muller, 1933)
A French Army teaching text with coloured schematic plates explaining the working of every French service small arm of the period, from the Lebel and Berthier rifles to the Chauchat, FM 24/29, Hotchkiss and the 7.65 mm Ruby-type pistol. The Chauchat dive takes its cycle, feed plates (Planches XV–XXII) and the 637 m/s Balle D velocity from it; the Ruby section covers that pistol.
- F.lli Pietta — Instruction Manual for Muzzleloading (Percussion) Guns, English
Pietta's English instruction manual for its percussion revolvers, including the LeMat model: loading charges and ball sizes, the shot barrel, safety, disassembly and cleaning.
- F.lli Pietta — Revolver Catalogue 2025/26
Pietta's revolver catalogue (pages headed 'Catalog 2025'), including the LeMat reproductions in their current variants.
- FCC Grant of Equipment Authorization 2ABCB-PICO2W (Raspberry Pi Pico 2 W, DTS)
25 November 2024 grant: 2412–2462 MHz and the 20 cm separation condition.
- FedEx Service Guide 2026 (effective 5 January 2026, updated 11 September 2026)
Carrier terms, including the prohibitions on replica and 3-D-printed weapons.
- Frequency-Dependence of Psychophysical and Physiological Responses to Hand-Transmitted Vibration
Open-access review: hand sensitivity peaks around 80–160 Hz and follows velocity; the basis for choosing rumble frequency.
- From Muzzle-Loading Cannon and Composite Guns to the Wheel Gun (Wang Zilin, Palace Museum)
A Palace Museum (Beijing) article, in Chinese, on the Qing court's guns, describing the museum's revolving 'wheel gun' (轮子炮) with its eleven-chamber turntable, its measurements and the 1804 inventory record of three presented by Westerners; text page and plate page. The Puckle Gun dive uses it for the Chinese revolving gun as a comparison to Puckle's design.
- FSTC 381-5012 — Typical Foreign Unconventional Warfare Weapons (U)
Unclassified US Army Foreign Science and Technology Center study (post-1964, undated) of weapons improvised or modified by insurgents. The small-arms section describes two Viet Cong Sten-type submachine guns built around Mk II pattern parts, with photographs — the clandestine-fabrication afterlife of the design. The title page also prints the number as 381-4012.
- Fundamentals of Texture Mapping and Image Warping (Master's thesis, UCB/CSD-89-516)
Berkeley master's thesis, 17 June 1989. The closed-form square-to-quadrilateral projective mapping that OpenFIRE's aiming maths uses.
- Fusil à répétition modèle F2 — FRF2: Armée de Terre Identification Poster (2010)
The French Army's one-sheet identification poster for the FR-F2 sniper rifle (SIRPA Terre, 2010), with its characteristics. The MAS FR-F2 dive's first source for the rifle's official data.
- General Instrument Microelectronics — 1977 Data Catalog
608-page data book. The AY-3-8500/8550 'Ball & Paddle' television game chips and their rifle interface (Fig. 7), the light gun of the dedicated Pong consoles. Downsampled to 150 dpi.
- German Infantry Weapons — MIS Special Series No. 14 (1943)
The US Military Intelligence Service's 25 May 1943 survey of German infantry weapons. The MG 42 dive quotes sections 12 and 13 (M.G. 34 and M.G. 42, pp. 58–94); the Luger P08 dive uses its pistol section (pp. 3–10) for the wartime American description of the P08.
- German Patent DRP 75,837 — Borchardt, Selbsttätige, besonders als Repetirpistole verwendbare Feuerwaffe (1893)
Hugo Borchardt's German patent for the C-93 self-loading pistol, granted from 9 September 1893: full specification and three drawing sheets (Figs. 1–19), including the three-position schematic of the toggle ('Froschgelenk') rising as the breech opens.
- Guardian Electric T12x13 DC Tubular Solenoid — Datasheet
Pull tubular solenoid: force table at four duty levels, coil table, masses and life.
- Guardian Electric T4x12 DC Tubular Solenoid — Datasheet
Small pull tubular solenoid with its force table.
- Guardian Electric TP6x12 DC Push Tubular Solenoid — Datasheet
Push tubular solenoid, shortlisted for a bore-axis striker.
- Guide on the Use of the German Model P.08 Pistol, Caliber 9mm Parabellum (Century International Arms)
The importer's short guide supplied with surplus P08 pistols: description, operation and care and cleaning. The Luger P08 dive cites it, and notes that its production claims conflict with the factory figures.
- Hand-Book of the Lewis Machine Gun, Model 1918, Caliber .30 (Savage Arms)
Savage's maker's handbook for the American .30-06 Lewis: general description, weights and measurements, dismounting and stripping, assembly, operation, the safety, care and adjustment, with plates. The Lewis Gun dive's main source for the mechanism, takedown and the American guns.
- Heckler & Koch Mark 23 Pistol .45 ACP Operator's Manual (2008)
H&K USA's operator's manual for the commercial Mark 23 (revised March 2007; PDF dated August 2008): safety, description, operation, field stripping, maintenance and the parts list. The HK Mk23 dive takes the controls, takedown, care and part names from it.
- Heckler & Koch Military & Law Enforcement Catalogue (2008)
H&K's US military and law-enforcement catalogue of 2008 ("© HKDCS 01.12.08"). The HK PSG1 dive cites its "HK Precision Rifles" panel (p. 19) for the PSG1 and MSG90 as H&K offered them then.
- HK Personal Defense Weapon — 4.6 × 30 mm PDW Weapon System (Schatz, H&K Inc., 2000)
An H&K Inc. presentation on the PDW system ("Revised 12/00"), with product-comparison slides of November 2000 using prototype data. The HK MP7 dive cites it for H&K's case for the 4.6 mm cartridge during the NATO PDW contest.
- Hynetek HUSB238A USB PD EPR Sink Controller — Datasheet (Rev 1.1)
Alternative EPR sink; its fallback rule is quoted.
- IATA Battery Guidance Document — Transport of Lithium Metal, Lithium Ion and Sodium Ion Batteries (Revised for the 2026 Regulations)
Air transport rules for shipping packs and kits.
- Infineon EZ-PD CCG3PA USB Type-C Port Controller — Datasheet (002-16951 Rev *H)
Source-side controller, covered as a 'why not'.
- Infineon IPD50N06S4L-12 OptiMOS-T2 60 V N-Channel MOSFET — Datasheet (Rev 1.0)
Logic-level 60 V, 12 mΩ DPAK MOSFET; the reference solenoid switch.
- Injoinic IP2721 Type-C/PD2.0/PD3.0 Input Physical Layer IC — Datasheet (V1.02)
The common 'decoy' chip.
- Inspection Checklist: Fake, Toy, or Imitation Guns (NYC DCWP, 08/2022)
NYC Administrative Code § 10-131(g) as the inspectors enforce it.
- Instructional Notes on the Lewis Gun — RAF F.S. Publication No. 37 (1918)
The Royal Air Force's April 1918 instructional notes on the Lewis gun as an aircraft weapon. The Lewis Gun dive cites it for the air-service guns and their handling.
- International Rectifier IRLZ44NPbF Logic-Level HEXFET MOSFET — Datasheet
55 V logic-level TO-220 MOSFET; the breadboard-stage switch, with its RDS(on) points.
- ITU-R Recommendation BT.470-6 — Conventional Television Systems (11/1998)
Line and field timing tables for the NTSC, PAL and SECAM systems that CRT light guns time against.
- Jak vznikl Škorpion: žádost o vývoj (Pazdera, Střelecká revue, January 2022)
The first page (the only one online) of David Pazdera's Střelecká revue article on the Škorpion's origin: the one-page requirement for a 7.65 mm weapon of about a kilogram, 250 mm folded, 100 m useful range, firing single shots and bursts. The Škorpion vz. 61 dive translates it.
- Japan Defense Agency Budget Overview, Fiscal 2000 (防衛力整備と予算の概要)
The Defense Agency's budget overview for fiscal 2000; its Ground Self-Defense Force front-line equipment table ("(6) 正面装備予算総括表") gives the 9 mm machine pistol buys for FY1999 and FY2000. Cited by the Minebea PM-9 dive for the procurement count. Image-only.
- Japan Defense Agency Budget Overview, Fiscal 2001 (防衛力整備と予算の概要)
The Defense Agency's budget overview for fiscal 2001, with the same front-line equipment table (13 guns). Cited by the Minebea PM-9 dive. Image-only.
- Japan Defense Agency Budget Overview, Fiscal 2002 (防衛力整備と予算の概要)
The Defense Agency's budget overview for fiscal 2002; p. 34 gives the 9 mm machine pistol buy (56 guns). Cited by the Minebea PM-9 dive.
- Japan Defense Agency Budget Overview, Fiscal 2003 (防衛力整備と予算の概要)
The Defense Agency's budget overview for fiscal 2003; p. 24 gives the last 9 mm machine pistol buy (27 guns). Cited by the Minebea PM-9 dive.
- Japan Defense Agency Budget Overview, Fiscal 2004 (防衛力整備と予算の概要)
The Defense Agency's budget overview for fiscal 2004; its front-line equipment table shows no 9 mm machine pistols that year, which with the earlier overviews gives the dive's total of 266 guns for FY1999–FY2003.
- Jinlong G1040003D LRA Coin Vibration Motor — Product Specification
Bilingual specification with the LRA test jig and its figures.
- Kinematic Evaluation of the Special Purpose Individual Weapon Prototypes — BRL Technical Note No. 1541 (1964)
A Ballistic Research Laboratories note of August 1964 measuring the mechanical cycle of the SPIW prototypes. The Hyper-Burst Mechanisms dive cites it for the burst rates and timing the prototypes achieved.
- Know Your Weapons No. 5 — Sten and Bren Guns (Nicholson & Watson)
A 16-page wartime Home Guard booklet from the Nicholson & Watson 'Know Your Weapons' series: labelled cutaways and plain-language notes on the STEN and the Bren for civilian volunteers. Operator level, not engineering.
- Konami Lethal Enforcers — Operators and Service Manual (UK)
UK manual (part no. 9A200) with an optical-gun troubleshooting table.
- Krieghoff Parabellum 2006 Limited Edition — Catalogue Sheet (English)
Krieghoff's one-page catalogue sheet for the 200-piece 2006 Parabellum (serials 18001–18200), with the firm's own wartime production figures (about 13,850 Model 08 pistols 1934–45, about 1,650 civilian). The Luger P08 dive notes that its barrel length and weight disagree with the manual's.
- Krieghoff Parabellum P08, Caliber 9mm — Instruction Manual (English)
Krieghoff's maker's manual for its new-production 2006 Limited Edition Parabellum P08 (200 pistols): safety, the mechanism, stripping, a function check and general data. The Luger P08 dive quotes its warning that the dismantled pistol can fire when the sear bar is pushed, and compares its data with the catalogue's.
- Krieghoff Parabellum P08, Kaliber 9mm — Bedienungsanleitung (German)
The German edition of Krieghoff's manual for the 2006 Limited Edition Parabellum P08, kept alongside the English edition the Luger P08 dive quotes.
- Kurzbeschreibung des Präzisionsschützengewehres PSG 1 (Heckler & Koch)
H&K's German-language short description and operator's booklet for the PSG1 (46 printed pages, scanned as two-page spreads): description, technical data, handling and care. The HK PSG1 dive translates its technical data and description.
- L-com BU2HF-2824BK USB Bulk Cable Specification (Rev A)
Construction of the proposed USB lead (WP-4).
- Ledex Box Frame Size B14 Linear Solenoid — Datasheet
Duty-cycle voltage table and force-stroke chart for a small box-frame solenoid.
- Ledex Solenoids Catalogue, Section H — Open Frame Solenoids
Catalogue section with the design considerations (duty cycle, life, pole faces, temperature) plus the open-frame range.
- Lethal Enforcers — Instruction Booklet (Super NES, US)
Justifier setup and troubleshooting, with the gun's specification JE507-S01 (5 V, 15 mA).
- Lewis Gun Mechanism Made Easy, 6th edition (Pridham, 1940)
A British instructional booklet on the Lewis gun's mechanism and stoppages, sixth edition with notes on the .300 (American) Lewis guns issued to the Home Guard in 1940, with a coloured plate. The Lewis Gun dive uses its sections and Tables A and B for the cycle and the immediate-action drills.
- LightGunVerter — Instructions
The only manual for a published light-gun timing box: cables, delay, white level and calibration.
- Linear Technology AN88 — Ceramic Input Capacitors Can Cause Overvoltage Transients
Hot-plug ringing of a supply lead into a ceramic input capacitor.
- Linear Technology LTC4425 Linear SuperCap Charger with Current-Limited Ideal Diode — Datasheet (Rev A)
Two-cell supercapacitor charger with balancing, current limit and an ideal diode; the USB-powered supercap path.
- Luger FAQs (Luger Forum and Jan Still Forum, 2019)
A collectors' compilation of answers on Luger makers, markings, variants, production and books, last updated 1 August 2019 and distributed free by the Luger Forum. The Luger P08 dive uses it as an attributed secondary for makers, dates and markings.
- Machine Gun MG3 Operator's Manual, Cal. 7.62 mm × 51 (Rheinmetall, 1992)
Rheinmetall's English-language export operator's manual for the MG3, the post-war 7.62 mm NATO MG 42: description, field stripping, operation, barrel change, stoppages and care. The MG 42 dive takes its mechanism, maintenance and barrel-change procedure from it.
- Magnavox Odyssey Shooting Gallery — Instructions (1972)
Instructions for the Odyssey Shooting Gallery and its Electronic Rifle, the first home light gun: game cards 9 and 10, overlays, room lighting.
- Marking of Toy, Look-Alike, and Imitation Firearms — Direct Final Rule (CPSC, 88 FR 30226, 11 May 2023)
Creates 16 CFR part 1272; traces the rule from 15 CFR 1150 to 272 to 1272.
- Mauser C96 — US Patent 584,479 (1897)
Original US patent drawings for the C96 firing mechanism and lockwork.
- Mauser-Werke Drawing 1MD06-61, "Griffschale, linke" — P08 Left Grip (1939)
A 1:1 Mauser factory drawing of the P08's left grip panel in black laminated paper-phenolic ("Papierschichtpreßstoff Typ Z3 schwarz"), drawn 29 June 1939, checked 7 December 1939 and changed 20 June 1941. The Luger P08 dive uses it to date the black plastic grip against the collectors' "approved mid-1941".
- Mean Well GST120A Series 120 W Industrial Adaptor — Specification
Desktop AC-DC adaptor family; notes -V tied to FG on the DIN-plug version.
- Mean Well GST60A Series 60 W Industrial Adaptor — Specification
Desktop AC-DC adaptor family: overload trip band and hiccup recovery, DC plug and cable options, floating output.
- Mean Well GST90A Series 90 W Industrial Adaptor — Specification
Desktop AC-DC adaptor family; source for the 2.5 mm standard DC plug.
- Mean Well NSP-75 Series 75 W Enclosed Power Supply — Specification
Enclosed supply with a peak-power rating (35 % duty, 5 s) relevant to solenoid pulse loads.
- Microchip MCP4728 12-Bit Quad DAC with EEPROM — Datasheet (DS22187E)
The DAC in proposal AH-5 (emulating gun potentiometers).
- Midway CarnEvil — 2-Player Dedicated 25" Operation Manual 16-40069-101
November 1998 manual: the screen-flash brightness setting for the optical guns.
- Midway Terminator 2: Judgment Day — Operations Manual 16-40009-101
December 1991 manual: gun assembly A-14415, its potentiometers, recoil coil and calibration.
- MoD FOI Reply 2017/07603 — SA80 A2 Unit Cost (2017)
The Army Secretariat's reply of 17 August 2017 to a Freedom of Information request on the unit cost of the SA80 A2. Cited by the SA80 dive.
- MoD FOI Reply 2017/09121 — SA80 A2 Upgrade Cost and A3 Initial Tranche (2017)
Defence Equipment and Support's reply of 15 November 2017 to a Freedom of Information request on the cost of the A2 upgrade and the first tranche of the A3. Cited by the SA80 dive.
- MoD FOI Reply 2020/03296 — L85 Fleet (2020)
The Army Secretariat's reply of 5 May 2020 to a Freedom of Information request on the L85 fleet. Cited by the SA80 dive.
- Molicel INR-18650-P28A Lithium-Ion Cell — Product Data Sheet (V2-80093)
The reference Li-ion cell for the battery dive.
- Moticont Linear DC Motors (Voice Coil) — Comparison Table and Data Sheets
Stroke, force and mass figures for Moticont voice-coil linear motors, the candidates for a moving ejection port.
- Motorola AN-851 — MC6845 CRTC Simplifies Video Display Controllers
A low-to-high edge on LPSTB latches the refresh address into R16/R17.
- Moveable Interactive Projected Displays Using Projector Based Tracking (UIST 2005)
Projector-based tracking at about 12 Hz with hidden patterns.
- MP7 A1 — Innovation for the Future: Brochure (Heckler & Koch, c. 2007)
H&K's earlier 16-page MP7A1 sales brochure (image PDF dated 2007), with the parts key, NATO requirement and user groups. Cited by the HK MP7 dive. The same brochure is on the Internet Archive as HkMp7a1_text.pdf.
- MP7 A1 — Innovation for the Future: Technical-Data Brochure (Heckler & Koch, 2011)
H&K's technical-data brochure for the MP7A1 (Id.-Nr. 978076/V002.02.11). Cited by the HK MP7 and FN P90 dives for the weapon's published specifications.
- MP7 A1 / MP7 A1-KSK — Instrucciones para el manejo (Heckler & Koch, Spanish, 2006)
H&K's Spanish-language handling instructions for the MP7A1 and MP7A1-KSK (PDF of 3 August 2006), fuller than the English fax copy. The HK MP7 dive uses chapters 2–5, 12, 13, 15 and 16.
- MP7 A1, Cal. 4,6 mm × 30 — Brochure (Heckler & Koch, Spanish, 2007)
H&K's 25-page Spanish-language MP7A1 brochure of 2007. Held with the HK MP7 dive's maker documents.
- Namco Deadstorm Pirates Special Edition — Operation Manual
A positional (mounted) gun on an LCD.
- Namco Point Blank — Operators Manual (Part No. 90500078)
UK operators manual for the Point Blank light-gun cabinet; the earliest 'blowback' recoil evidence found.
- Namco Time Crisis 3 SD — Operation Manual
Namco's last optical gun, with the lens fire-hazard warning. Downsampled to 150 dpi from a 66 MB scan.
- Namco Time Crisis 4 DX — Operators Manual, Issue 2 (Part No. 90500167)
Deluxe-cabinet manual: the gun's solenoid unit, rubber spacer and +24 V solenoid wiring.
- Namco Time Crisis II — Operation Manual
Operation manual with the blowback test and the ST-0860A2 solenoid in the parts list.
- Namco Time Crisis SD — Operation Manual
Standard-cabinet manual with the gun-solenoid replacement drawing, ST-0860A2 and the silencer rubber.
- Namco Vampire Night DX — Operators Manual (Part No. 90500127)
System 246 deluxe gun cabinet: camera windows and projection. Read for research.
- NDS Y 7101C 小火器弾薬射撃試験用銃器 — Weapons for Small-Arms Ammunition Firing Tests (Japan MOD standard)
The Ministry of Defense standard for weapons used to test-fire small-arms ammunition (established 30 May 1978, revised 15 April 2015), including bore and chamber gauging. The Type 64 dive cites sections 5.3.1–5.3.1.2 and Tables 1 and A.4.
- Nickl Schnellfeuer (Mauser Model 712) — US Patent 1,980,874 (1934)
Patent for the select-fire Schnellfeuer mechanism of the Mauser Model 712.
- Nintendo Wii Zapper — Operations Manual (C/RVL-A-ZA-USZ)
Trilingual booklet for the Wii Zapper shell: configurations, jacket and strap rules.
- Nintendo Zapper — Instruction Manual (rev. 2)
The NES Zapper's own leaflet: port 2 only, about 6 ft range, TV adjustment, warranty and repair, part no. 2460.
- Notes on Caliber .30 Model of 1918 Pistol (the Pedersen Device), Ordnance Department
The Army's confidential instructional notes on the Pedersen Device, cover-named the "Caliber .30 Model of 1918 Pistol": description, installation in the modified M1903 rifle, operation and care. The Pedersen Device dive's primary source for the mechanism.
- Notes on Mechanism of the Chauchat Machine Rifle, Model 1915 — School of Automatic Arms, Camp Kearny
A February 1918 US training pamphlet from the 40th Division's Machine Gun Instruction and Inspection Division describing the Chauchat's parts and cycle. The Chauchat dive uses it with the French instruction for the long-recoil cycle and the American view of the gun.
- NXP UM10204 I²C-bus Specification and User Manual, Rev. 7.0
The I²C specification; rise-time limits and the pull-up resistor formula used for the camera bus.
- Office of Naval Intelligence, General Information Series No. XV (1896)
The US Navy's 1896 intelligence annual, which includes a numbered-parts plate and technical description of the Borchardt pistol (the source of the dive's 0.118 in barrel recoil figure).
- Olimex CONNECTOR-GX12-4 Aviation Plug (GX12, 4-pin)
One-page sheet for the GX12 4-pin aviation connector set, including its 5 A rating.
- Omron B3F Tactile Switch — Datasheet
The picked thumb button; the only published bounce time (5 ms) among the candidates.
- Omron D2F Ultra Subminiature Basic Switch — Datasheet
The picked lever trigger switch (D2F-01F) and its minimum applicable load.
- Omron SS Subminiature Basic Switch — Datasheet
SS-01 gold-contact switch, the one in Namco's Time Crisis SD gun.
- Omron V Miniature Basic Switch — Datasheet
V-15-1C25, the PICON-AS trigger switch; 160 mA minimum load.
- onsemi NSI45090JD Adjustable Constant Current Regulator & LED Driver — Datasheet
Adjustable 90–160 mA CCR in DPAK; the alternative IR-emitter current regulator.
- OpenFIRE Hardware Guide, Version 1.3
The project's own wiring sheets: camera, Wii-sensor conversion, solenoid, rumble, LEDs, OLED and buttons. Fetched 2026-10-18 (PDF created 2026-10-17); supersedes the v1.2 edition the Reference Electronics dive first quoted.
- OpenJVS and OpenJVS IO — Manual (Document Version 1.2)
JVS connector pinout and the OpenJVS IO HAT design.
- Operational Requirements for an Infantry Hand Weapon — ORO-T-160 (Hitchman, 1952)
The Operations Research Office's 1952 Project BALANCE memorandum that analysed combat ranges and hit probability and argued for a weapon delivering several projectiles per aim. The Hyper-Burst Mechanisms dive starts its history of salvo and burst fire here.
- Oral History Transcript: General Lemuel C. Shepherd Jr., USMC (1966–1967)
The transcribed memoir of General Lemuel C. Shepherd Jr. from interviews of 1966–67, including his First World War service with the 5th Marines. The Chauchat dive searched the full text and found that the much-repeated "damned Chauchat" quotation attributed to him does not appear in it.
- OSS file — Military Equipment and Supplies for Guerrilla Operations / Production of STEN Submachine Guns and Ammunition in the U.S. (1942)
A 53-page declassified OSS file from September 1942 on supplying guerrilla operations, including the proposal to have STEN guns and their ammunition produced in the United States (with requests of 2,500 guns for Chinese special operations). Wartime carbon copies; the OCR text is rough and should be checked against the page images before quoting.
- P46 Data Sheet (Heckler & Koch, December 2004)
H&K's four-page P46 data sheet ("Stand: Dezember 2004"). Cited by the HK MP7 dive.
- Phoebus Corporation and Rayolite Rifle Range Co. v. Ford Amusement Devices — Proceedings Transcript, 1 July 1936
Court transcript for 1 July 1936 in In Equity No. 15,014, the suit over the Rayolite light-ray gallery patents (2,007,082 and 2,007,083). The History of Light Guns dive draws the first light gun's business history from the five days of transcript.
- Phoebus Corporation and Rayolite Rifle Range Co. v. Ford Amusement Devices — Proceedings Transcript, 27 May 1936
Court transcript for 27 May 1936 in In Equity No. 15,014, the suit over the Rayolite light-ray gallery patents (2,007,082 and 2,007,083). The History of Light Guns dive draws the first light gun's business history from the five days of transcript.
- Phoebus Corporation and Rayolite Rifle Range Co. v. Ford Amusement Devices — Proceedings Transcript, 28 May 1936
Court transcript for 28 May 1936 in In Equity No. 15,014, the suit over the Rayolite light-ray gallery patents (2,007,082 and 2,007,083). The History of Light Guns dive draws the first light gun's business history from the five days of transcript.
- Phoebus Corporation and Rayolite Rifle Range Co. v. Ford Amusement Devices — Proceedings Transcript, 29 June 1936
Court transcript for 29 June 1936 in In Equity No. 15,014, the suit over the Rayolite light-ray gallery patents (2,007,082 and 2,007,083). The History of Light Guns dive draws the first light gun's business history from the five days of transcript.
- Phoebus Corporation and Rayolite Rifle Range Co. v. Ford Amusement Devices — Proceedings Transcript, 30 June 1936
Court transcript for 30 June 1936 in In Equity No. 15,014, the suit over the Rayolite light-ray gallery patents (2,007,082 and 2,007,083). The History of Light Guns dive draws the first light gun's business history from the five days of transcript.
- Pistole vz. 08 (něm.) — Czechoslovak Police (SNB) Weapons Text of 1946 (Muzeum Policie ČR transcription)
A Czech Police Museum transcription, in Czech, of the 1946 weapons-instruction text for members of the SNB on the German P08 ("Pistole vz. 08"): principle, main parts and field stripping. The Luger P08 dive translates it for the post-war Czechoslovak police use of the pistol.
- PixArt PAJ7025R2 Multiple Objects Tracking Sensor Module — General Product Datasheet V1.1
The only public PixArt multiple-object-tracking (MOT) camera datasheet found; the camera family used in Wii-style light guns.
- Präzision mit Geschichte — Test of the Schwaben Arms SAR M41 PSG (Keck, DWJ, January 2023)
A Deutsches Waffen-Journal test (January 2023, pp. 20–25) of the Schwaben Arms SAR M41 PSG, a current German semi-automatic PSG1 pattern. The HK PSG1 dive translates it for the modern reproduction.
- Precision Microdrives 307-103 Vibration Motor — Product Data Sheet
9 mm Pico Vibe ERM, with a reliability (MTTF) analysis. Part of the Motors and Rumble comparison table.
- Precision Microdrives 310-103 Vibration Motor — Product Data Sheet
10 mm Pico Vibe ERM (sampling target spec). Part of the Motors and Rumble comparison table.
- Precision Microdrives 310-118 Vibration Motor — Product Data Sheet
10 mm Pico Vibe ERM (sampling target spec). Part of the Motors and Rumble comparison table.
- Precision Microdrives 312-004 Vibration Motor — Product Data Sheet
12 mm ERM (20 mm type). Part of the Motors and Rumble comparison table.
- Precision Microdrives 312-107 Vibration Motor — Product Data Sheet
12 mm ERM (15 mm type), the fallback; defines normalised amplitude. Part of the Motors and Rumble comparison table.
- Precision Microdrives 324-104 Vibration Motor — Product Data Sheet
24 mm Uni Vibe ERM. Part of the Motors and Rumble comparison table.
- Precision Microdrives 334-401 Vibration Motor — Product Data Sheet
34 mm Uni Vibe ERM, the design-target rumble motor. Part of the Motors and Rumble comparison table.
- Proto Labs Aluminum 6061-T651/T6 — CNC Material Data Sheet (2026)
Properties of 6061-T6 for the machined MP7.
- Proto Labs Aluminum 7075-T651/T6 — CNC Material Data Sheet (2026)
Properties of 7075-T6, the stronger alternative.
- Provisional Instruction on the Automatic Rifle, Model 1915 (Chauchat) — War Department Document No. 732
The AEF's English translation of the French Instruction provisoire of February 1916 (revised to 9 June 1917), reprinted by the Army War College in January 1918 as War Department Document No. 732. The Chauchat dive quotes it for the gun's classification as a long-recoil weapon, the mechanism, stoppages and the specified 86 D cartridge.
- Prusament PETG — Technical Data Sheet (v1.1)
16 February 2022 data sheet: density, heat deflection temperature and Charpy impact by print orientation.
- R.H. Electronics Light Pen — User Manual (BBC Micro)
Rising-edge latch, the 7% error window and one-character resolution.
- Raspberry Pi PCN 32 — Products Moving to RP2350 A4 Silicon Stepping
Product change notice: Pico 2 and other RP2350 products move to the A4 stepping, which fixes erratum E9.
- Raspberry Pi Pico — Datasheet
- Raspberry Pi Pico — Product Brief
Six-page brief with the 21 × 51 mm board outline used to size the carrier inside each donor.
- Raspberry Pi Pico 2 — Datasheet
- Raspberry Pi Pico 2 W — Datasheet
CYW43439 pins, VBUS sense on WL_GPIO2 and the antenna keep-out.
- Raspberry Pi RP2040 — Datasheet
- Raspberry Pi RP2350 — Datasheet
- Raw Thrills Big Buck Hunter Pro — 27" Dedicated Operator's Manual (040-00001-00)
Gun calibration schedule.
- Report of Board on Tests of Revolvers and Automatic Pistols (US Army, 1907)
The US Army board's report on its 1907 trials of .45 revolvers and automatic pistols, printed as an appendix to the Annual Report of the Chief of Ordnance with nine plates. The Luger P08 dive reads the .45 Luger's velocity table from it; the Bergmann 1896/1897 dive cites its test of the .45 Bergmann.
- Sa vz. 61 Pistol — Návod k použití (Czech Small Arms, Czech edition)
The Czech-language edition of Czech Small Arms' manual for the semi-automatic Sa vz. 61 pistol, named in the Škorpion vz. 61 dive's intake list alongside the English edition it quotes.
- Sa vz. 61 Pistol Instructions Manual (Czech Small Arms, English, 2016)
Czech Small Arms' English manual (29 September 2016) for its semi-automatic Sa vz. 61 pistol in 7.65 mm Br., 9 mm Br., 9 mm Makarov and .22 LR. The Škorpion vz. 61 dive cites it, quoted as published, for the parts it shares with the military gun and for stripping.
- SALVO I Rifle Field Experiment — ORO-T-378 (1959)
The Operations Research Office's report on the SALVO I rifle field experiment run at Fort Benning in June and July 1956, published June 1959. The Hyper-Burst Mechanisms dive cites it for the measured hit rates of salvo and burst fire.
- SALVO II Rifle Field Experiment — ORO-T-397 (1961)
The Operations Research Office's SALVO II report (received 31 October 1960, published May 1961). The Hyper-Burst Mechanisms dive cites it for the second field experiment's results on multiple-projectile and burst weapons.
- SAMCO 1.1 Light Gun Wiring Guide
Original SAMCO carrier wiring for the ItsyBitsy 32u4. GPL-3.0 repository.
- SAMCO 2.0 Light Gun Wiring Guide — ItsyBitsy 32u4 3V, M0 and M4
SAMCO 2.0 wiring for the 3 V ItsyBitsy boards; the ancestor of OpenFIRE's ItsyBitsy layout. GPL-3.0 repository.
- SAMCO 2.0 Light Gun Wiring Guide — ItsyBitsy 32u4 5V
SAMCO 2.0 wiring for the 5 V ItsyBitsy 32u4. GPL-3.0 repository.
- SAMCO Light Gun Wiring Guide — All Boards (discontinued)
Single sheet covering every SAMCO board variant, marked discontinued. GPL-3.0 repository.
- Same Sky (CUI) PJ-002A DC Power Jack — Datasheet (rev 1.05)
Right-angle through-hole barrel jack, 2.0 mm pin, 2.5 A rating.
- Same Sky AMT10 Series Modular Incremental Encoder — Datasheet
Capacitive incremental encoder, the alternative to a magnetic angle sensor on a mounted gun.
- Same Sky PJ-005A Panel-Mount DC Power Jack — Datasheet (rev 1.09)
Panel-mount barrel jack, 2.0 mm pin, 5 A; the gun-side jack pick.
- Same Sky PJ-063AH DC Power Jack, 8 A — Datasheet
Shielded right-angle PCB barrel jack, 2.0 mm pin, 8 A; the alternative jack.
- Samopal ZB 47 — Zbrojovka Brno Manual (1947), Ofseta plus Reprint (1997)
Zbrojovka Brno's 1947 manual for the Holek brothers' ZB 47 submachine gun, in the Ofseta plus reprint of 1997 ("odborný český překlad původního návodu k obsluze včetně vyobrazení"), scanned as two-page spreads: the new gun, groups and parts, description, handling and firing, dismantling and cleaning, technical data. The ZB 47 dive's primary source, translated.
- Schlagkraft — Umarex MP7 Airsoft Models (Lechner, DWJ 3/2015)
A Deutsches Waffen-Journal test (3/2015, pp. 52–55) of Umarex's licensed MP7 airsoft models. The HK MP7 dive cites it for the replicas.
- Scientific American, 3 August 1895 — "Improved Repeating Pistol" (Borchardt)
Scientific American vol. 73 no. 5 (3 August 1895), including the illustrated article 'Improved Repeating Pistol' on the Borchardt pistol made by Ludwig Loewe & Co. of Berlin, with ten engravings.
- Sega Alien3: The Gun — Owner's Manual (UK)
B 5k linear potentiometers in the gun mount, and the vibrate motor and its brushes.
- Sega Genesis Lightguns — Menacer and Justifier notes (Eke-Eke, 2008)
Emulator author's notes on the Sega Menacer and Konami Justifier, reverse-engineered from game code (untested on hardware, as the author says). The candidate list credited it to Charles MacDonald; the document is signed Eke-Eke, 29/07/2008.
- Sega Ghost Squad — Owner's Manual
Owner's manual for the Ghost Squad cabinet: the solenoid 'gun reaction', burn warning and photos of the gun controller.
- Sega Laser Ghost — Owner's Manual
Three-player gun game: volume (potentiometer) replacement and the motor weight.
- Sega Line of Fire Upright — Temporary Manual
Variable-resistor gear adjustment for the mounted guns and the solenoid circuit protectors.
- Sega NAOMI GD-ROM System — Service Manual 420-6620-01
First printing February 2001: JVS versus 'old JAMMA', connectors CN1–CN5 and the JVS TEST screen.
- Sega Primeval Hunt DX — Service Manual
Lindbergh JVS I/O error codes.
- Sega The House of the Dead 4 — Owner's Manual
The gun sensor unit and gun motor.
- Sega The House of the Dead III, Deluxe Type — Service Manual 420-6742-01UK
The IR gun-sense system: LED boards around the screen and the frequency jumper.
- Sega Virtua Cop — Owner's Manual 4201-6149-05
Gun sensor unit COP-2020 and the I/O option board.
- Sega Virtua Cop 2 — Owner's Manual (UK)
Gun sensor board and the RGB loom it taps.
- Sénat, Rapport n° 35 (1989–1990): Transfer of the GIAT Establishments to a National Company (de Villepin)
The French Senate committee report of October 1989 on the bill that turned GIAT's state arsenals, including the Manufacture d'armes de Saint-Étienne, into a national company. The MAS FR-F2 dive uses it for the industrial history of the FR-F2's maker.
- Simmons, "Dr. Jean Alexander Francoise Le Mat and the New Orleans Affair" — ASAC Bulletin 22 (1970)
Document-based biographical paper on LeMat from New Orleans records: census, medical register, family, addresses, the 1856 patent's ceded share and the 1859 partnership with Beauregard. American Society of Arms Collectors Bulletin 22, pp. 33–41.
- Sketchpad: A Man-Machine Graphical Communication System (UCAM-CL-TR-574)
Sutherland's 1963 MIT thesis, reissued by the Cambridge Computer Laboratory with a new preface. Chapter IV covers the light pen on a random-scan display.
- SkyRC B6neo+ Smart Charger — Instruction Manual (v1.20)
Charger parameter table and warnings.
- Small Arms Identification and Operation Guide: Eurasian Communist Countries — FSTC-CS-07-35-66 (1967)
The US Army Foreign Science and Technology Center's July 1967 identification and operating guide to small arms of the Eurasian communist countries. The Škorpion vz. 61 dive uses its paragraphs 25–30, figures 10–11 and Tables I–II for the US view of the gun; the Chinese Type 63 dive also cites it.
- Small Arms Training, Volume I, Pamphlet No. 21 — The Machine Carbine (1944)
The 1944 War Office training pamphlet that superseded the separate 1942 Thompson and STEN pamphlets, covering both machine carbines in one: mechanism, handling, stripping, firing and stoppages, with appendices.
- Small Arms Training, Volume I, Pamphlet No. 22 — Sten Machine Carbine (1942)
The War Office training pamphlet for the STEN, issued 1942 by command of the Army Council: lessons on the mechanism, loading and unloading, holding and firing, stripping and assembling, with figures of the Mk I and Mk II.
- SMC CJ2 Series Air Cylinder, Standard Type — Catalogue
Allowable kinetic energy, piston speed and operating pressures.
- SMC CJP Series Pin Cylinder — Catalogue
Single- and double-acting pin cylinders.
- SMC V100 Series Direct Operated 3-Port Solenoid Valve — Catalogue
Response time, power, flow (C, b, Cv), pressure range and weight for the blowback valve.
- SNK Beast Busters — Manual
Potentiometer-aimed guns with solenoid recoil, and the calibration service bulletin.
- Solomon Systech SSD1306 128×64 OLED Segment/Common Driver with Controller — Datasheet (Rev 1.1)
Small OLED controller; its 400 kHz I2C limit constrains a shared sensor bus.
- Sony MSX Technical Data Book — Hardware/Software Specifications
I/O ports B8H–BBH reserved for the Sanyo light pen. Scan by Ivan Latorre, PDF by Eduardo Robsy (2004).
- Special Purpose Individual Weapon, Phase I Report (Harrington & Richardson, 1963)
Harrington & Richardson's Phase I report of 17 May 1963 on its Special Purpose Individual Weapon design. The Hyper-Burst Mechanisms dive cites it for the H&R SPIW and its burst mechanism.
- SPIW Modes of Fire — BRL Memorandum Report No. 1864 (1968)
A Ballistic Research Laboratories report of February 1968 (declassified) comparing the SPIW's modes of fire. The Hyper-Burst Mechanisms dive cites it for the measured value of controlled bursts.
- ST LSM6DSO 6-Axis IMU — Datasheet (DS12140)
Alternative 6-axis IMU compared in the dive.
- ST LSM6DSOX 6-Axis IMU with Machine Learning Core — Datasheet (DS12814)
The bench-trial IMU (Adafruit 4438 breakout).
- ST STUSB4500 Standalone USB PD Sink Controller — Datasheet (DS12499)
The proposed 20 V sink (UP-4).
- ST VL53L1X Long-Distance Time-of-Flight Ranging Sensor — Datasheet (DS12385 Rev 8)
Time-of-flight ranging limits, considered and rejected for aiming.
- STEN Mk II — Complete Machine Plans (community drawing set)
A widely circulated 24-page anonymous dimensioned drawing set for the Mk II: parts list, then per-part drawings of the receiver, bolt, barrel, trigger mechanism and furniture. Not an official MoS drawing set; verify any critical dimension against the official documents before cutting metal.
- STEN Mk II Compact — Receiver Template (one-sheet)
A single-sheet, print-to-scale receiver layout template for a shortened Mk II. Hobbyist drawing, not official.
- STEN Mk III — Receiver Template (one-sheet)
A two-half, print-on-legal-paper layout template for the Mk III receiver tube with hole positions and overall length (18-1/16 in), plus a note on lengthening for a bolt extension. Hobbyist drawing, not official.
- STEN Mk V — Receiver Template (one-sheet)
A single-sheet, print-to-scale layout template for the Mk V receiver. Hobbyist drawing, not official.
- Super Scope 6 — Instruction Booklet (Super NES, US)
Game booklet that documents the Super Scope: buttons, POWER/TURBO switch, ADJUST AIM.
- Swiss Federal Drawings: Ordonnanz zur Pistole 1900 ("Selbstlade-Pistole System Borchardt-Luger")
Seventeen hand-drawn dimensioned sheets of the Swiss Ordonnanz pistol of 1900, headed "Selbstlade-Pistole System Borchardt-Luger", from the Swiss Federal Archives. The Luger P08 dive uses them with the 1900/06 set for the original pattern's dimensions.
- Swiss Federal Drawings: Pistole 1900/1906 ("Selbstlade-Pistole Mod. 1904"), Bundesarchiv Bern Archiv-Nr. 18176
Nineteen hand-drawn dimensioned sheets of the Swiss service Parabellum, headed "Selbstlade-Pistole Mod. 1904" and stamped by the Swiss Federal Archives (Bestand 27, Archiv-Nr. 18176): barrel, frame, magazine and the 7.65 mm cartridge. The Luger P08 dive reads the barrel's 20 tpi Whitworth-form thread, the 250 mm twist and the frame-hardening note from them, and treats the set as the starting point for a from-scratch build.
- Taito Gunbuster — Manual (partial)
Partial manual: the motor and solenoid outputs.
- Taito Operation Thunderbolt — Operating Manual
Gun sight adjustment procedure and the solenoid assembly part numbers.
- Taito Operation Wolf — Cabinet Service Instructions
Cabinet service sheet: RF filter capacitors on the gun lines, and the interlock.
- Taito Operation Wolf — Operating Manual
Gun wiring that shows the gun is optical, the recoil crank, and gun replacement.
- Taito Space Gun — Service Manual (Electrocoin, Part No. 64082)
UK distributor's manual: the potentiometer-and-gear gun mount and the slide solenoid with its diode.
- TDK InvenSense ICM-42688-P High Precision 6-Axis MEMS MotionTracking Device — Datasheet (DS-000347 rev 1.6)
The proposed carrier IMU for inertial aiming assist.
- Technical Description of the Automatic Rifle HK G3, Cal. 7.62 mm NATO (English reprint)
An English-language technical description, operating and maintenance text for the G3, printed by a US publisher with H&K's permission (it states it is not an official manual). The HK PSG1 dive uses it for the G3 receiver, barrel and technical data the PSG1 shares.
- Terasic DE10-Nano User Manual (rev. E hardware, v2.6)
The MiSTer base board: HPS/ARM and the GPIO used by the I/O board's user port.
- Terminator Salvation 42" Deluxe — Setup and Operations Manual (rev. 7.30.12)
Gun camera and IR sensor tests.
- The Advanced User Guide for the BBC Micro
§18.9 light pens: 6845 registers R16/R17 and the per-mode correction factors.
- The Armourer's Handbook, Part II — Machine Carbines and Pistols (Labore, Gale & Polden)
A wartime Gale & Polden (Aldershot) handbook for unit armourers and inspecting officers. Opens with the STEN Mk II (and an illustration of the Mk III): detailed stripping, examination and what-to-look-for notes, followed by the Thompson, the Lanchester and the No. 1 and No. 2 pistols.
- The Armoury of His Grace the Duke of Buccleuch and Queensberry (Wilcock, Arms & Armour, 2012)
A survey of the Buccleuch family's historic armoury published in the Royal Armouries journal Arms & Armour 9(2), pp. 181–205 (author's version). The Puckle Gun dive cites it for the two Puckle guns in the collection, the drum magazine at Boughton and the third example in Copenhagen.
- The DIY STEN Gun (Practical Scrap Metal Small Arms Vol. 3)
Sheet-metal construction guide for a STEN-pattern submachine gun.
- The Enfield Weapon System — Royal Ordnance Sales Brochure (c. 1985)
Royal Ordnance's sales brochure for the Enfield Weapon System: construction, ammunition, sights, bayonet, scabbard and accessories. Cited by the SA80 dive.
- The First Patent Machine Gun – The Puckle Gun (McClain, ASAC Bulletin 126)
A collector's article in the American Society of Arms Collectors Bulletin 126 (pp. 64–67) on James Puckle's 1718 patent gun and the surviving examples. Used in the Puckle Gun dive as an attributed collector's secondary.
- The House of the Dead 2 — Instruction Manual (Dreamcast, US)
Context for the North American Dreamcast gun situation.
- The Mauser C96 Explained
Illustrated reference on the Mauser C96 — field-stripping, takedown, and mechanism.
- The Mauser Self-Loading Military Pistol (Dunlap, ASAC 1969)
Arms & Armour Society journal article on the Mauser self-loading military pistol.
- The Pistol and Revolver (Himmelwright, 1908)
A period American handbook on pistol and revolver shooting by the president of the United States Revolver Association (1908 edition). The Borchardt C-93 research checked it as a period source; it only lists Borchardt among the makes of automatic pistol.
- The Pistols of Germany and Its Allies in Two World Wars, Vol. I
Reference volume covering German and allied service pistols, including the C96.
- The Sega Light Phaser — Instructions
Light Phaser leaflet: Control 1 port, 4–6 ft range, lens care, serial-number warranty clause.
- The Selfloading Rifle HK91, Cal. .308 (Heckler & Koch leaflet)
H&K Oberndorf's six-page operator's leaflet for the HK91, the civilian semi-automatic G3 (pre-1990 address). The HK PSG1 dive cites it for the HK91 the US clone builds start from.
- The Sterling Submachine Gun — Dillon Blue Press, August 2011
An unsigned one-page article in Dillon Precision's Blue Press catalogue-magazine (August 2011, p. 41) on the Sterling submachine gun. Used by the Sterling Mk 7 dive as an attributed secondary.
- The Violent Crime Reduction Act 2006 (Realistic Imitation Firearms) Regulations 2007 (SI 2007/2606)
The UK colour and size rules for imitation firearms. Original print PDF.
- TI ADC0808-N/ADC0809-N 8-Bit µP-Compatible A/D Converters with 8-Channel Multiplexer — Datasheet (SNAS535H)
The ratiometric potentiometer input on Operation Thunderbolt's board.
- TI BQ25756 1–14-Cell Bidirectional Buck-Boost Battery Charge Controller — Datasheet (SLUSEN5A)
The on-board PD-input charger option.
- TI BQ76952 3S–16S High Accuracy Battery Monitor and Protector — Datasheet (SLUSE13B)
The high-side protector step-up option.
- TI BQ769x0 (BQ76920/30/40) 3S–15S Battery Monitor Family — Datasheet (SLUSBK2I)
Monitor alternative considered.
- TI BQ77904/BQ77905 3S–20S Ultra Low-Power Stackable Li-Ion Battery Protector — Datasheet (SLUSCM3K)
The picked pack protector.
- TI DRV110 Current Controller for Solenoids, Relays and Valves — Datasheet (SLVSBA8G)
PWM peak-and-hold current controller: fast ramp to a peak current, then a lower hold current to cut dissipation.
- TI DRV120 Relay, Solenoid and Valve Low-Side Driver with Current Regulation — Datasheet (SLVSBG3C)
Integrated low-side peak-and-hold solenoid driver with its own switch and recirculation path.
- TI DRV2605L 2- to 5.2-V Haptic Driver for LRA and ERM with Effect Library — Datasheet (SLOS854D)
Overdrive and braking, the ERM effect library, LRA auto-resonance 125–300 Hz.
- TI DRV5023 Digital-Switch Hall-Effect Sensor — Datasheet (SLIS151G)
Unipolar digital Hall switch, 2.5–38 V; the stock-firmware trigger sensor and pin-compatible with the DRV5056.
- TI DRV5055 Ratiometric Linear Hall-Effect Sensor — Datasheet (SBAS640C)
Bipolar ratiometric linear Hall sensor with a VCC/2 offset; the rejected alternative to the DRV5056 for the analogue trigger.
- TI DRV5056 Unipolar Ratiometric Linear Hall-Effect Sensor — Datasheet (SBAS644C)
Unipolar linear Hall sensor with a 0.6 V offset, running from 3.3 V or 5 V; the sensor chosen for the analogue Hall trigger.
- TI DRV8251A 4.1-A Brushed DC Motor Driver with Integrated Current Sense and Regulation — Datasheet (SLVSFU6)
H-bridge driver with an IPROPI current mirror and internal current regulation, 50 V absolute maximum; the regulated solenoid stage of the reference board.
- TI DRV8874 H-Bridge Motor Driver With Integrated Current Sense and Regulation — Datasheet (SLVSF66A)
H-bridge driver with current sense and regulation; the rejected alternative to the DRV8251A for the solenoid stage (40 V absolute maximum).
- TI ISO1540/ISO1541 Low-Power Bidirectional I2C Isolators — Datasheet (SLLSEB6F)
The isolator in proposal AH-5.
- TI LM1881 Video Sync Separator — Datasheet (SNLS384G)
The classic composite sync separator (Last Time Buy status noted in the dive).
- TI LM5060 High-Side Protection Controller — Datasheet (SNVS628H)
Rail switch: enable behaviour and quiescent current.
- TI LM66100 5.5-V 1.5-A Ideal Diode with Input Polarity Protection — Datasheet (SLVSEZ8A)
Ideal-diode ORing (WP-8).
- TI LM74700-Q1 Low-IQ Reverse Battery Protection Ideal Diode Controller — Datasheet (SNOSD17G)
Ideal-diode pair for a two-source supply (WP-3 alternative).
- TI LMH1981 Multi-Format Video Sync Separator — Datasheet (SNLS214H)
The proposed sync separator for an RP2040 console box (OC-2).
- TI OPA380 / OPA2380 Precision High-Speed Transimpedance Amplifier — Datasheet (SBOS291G)
The reference transimpedance amplifier for a CRT-timing photodiode front end.
- TI OPT101 Monolithic Photodiode and Single-Supply Transimpedance Amplifier — Datasheet (SBBS002B)
Integrated photodiode plus TIA, used as the counter-example (too slow for raster timing).
- TI TPS2116 1.6–5.5 V 2.5-A Low-IQ Power Mux — Datasheet (SLVSFG1A)
Power mux for the Stage 2 board (WP-8).
- TI TPS2550 / TPS2551 Adjustable Current-Limited Power-Distribution Switches — Datasheet (SLVS736C)
Adjustable current-limited switch; also the source of the USB 2.0 power rules quoted (100 mA, 44 Ω ‖ 10 µF).
- TI TPS2552 / TPS2553 Precision Adjustable Current-Limited Power-Distribution Switches — Datasheet (SLVS841F)
Precision current-limited USB power switch, up to 1.5 A.
- TI TPS25750 USB Type-C and USB PD Controller — Datasheet (SLVSFR7A)
The NRND predecessor; EEPROM configuration facts.
- TI TPS25751 USB Type-C and USB PD Controller with Integrated Power Switches — Datasheet (SLVSH93A)
The proposed in-gun sink (UP-6).
- TI TPS26750 USB Type-C and USB PD (EPR) Controller — Datasheet (SLVSH67)
EPR controller; the on-board charger reference.
- TI TPS55340 Integrated 5 A Wide-Input Boost/SEPIC/Flyback Regulator — Datasheet (SLVSBD4E)
40 V / 5 A integrated-switch boost regulator; the candidate for raising USB power to a solenoid voltage.
- TI TUSB321 USB Type-C Configuration Channel Logic and Port Control — Datasheet (SLLSEO6C)
Type-C CC logic; source for the Type-C current-advertisement levels.
- TI UCC27517A Single-Channel High-Speed Low-Side Gate Driver — Datasheet (SLUSBQ0C)
4 A peak low-side gate driver; the gate driver of the reference solenoid stage.
- Time Crisis — Instruction Manual (PlayStation, PAL)
G-CON45 controls, calibration and the list of incompatible televisions.
- Time Crisis 3 — Instruction Manual (PlayStation 2, US)
GunCon 2 controls; a cross-check on the Time Crisis II booklet.
- Time Crisis II — Instruction Manual (PlayStation 2, US)
GunCon and GunCon 2 connection diagrams, the External Cable and USB port assignment.
- Ultimarc AimTrak Setup Guide
Setup manual for the AimTrak, a closed commercial light gun; the comparison point for the open firmwares.
- Ultimarc Bluetooth Light Gun (AimTrak Bluetooth) — Guide
Tested hosts (iOS, Android), HID-over-GATT, and no recoil on the Bluetooth kit.
- Umarex H&K MP7A1 (spring airsoft) — Operating Instructions 2.6486
Multilingual maker manual for the spring MP7A1: parts callout, cocking handle, loading, H&K licence statement. The only maker manual found for any airsoft MP7.
- UN Security Council S/2002/1115 — Report of the Panel of Experts on Liberia (2002)
The UN Panel of Experts' report on Liberia, transmitted to the Security Council on 25 October 2002. The Škorpion vz. 61 dive cites paragraphs 64–65 and Table 1, a consignment flown from Belgrade to Liberia that included 60 Yugoslav M84 machine pistols in 7.65 mm (the licensed Škorpion).
- Universal Serial Bus Specification, Revision 2.0
The core USB 2.0 specification (usb_20.pdf from the USB-IF's 2025-06-03 package): cable impedance and delay, conductor resistance, VBUS and back-drive rules, suspend, bInterval.
- US Army Special Forces Foreign Weapons Handbook (1967)
The 385-page handbook compiled at Fort Bragg to teach Special Forces soldiers foreign small arms. It includes an entry on the 9 mm Mark V STEN (with notes on the Mk II and the mixing of parts between Marks) among the world's submachine guns. DTIC AD0867982, Distribution Statement A.
- US Design Patent D251,979 — Hance, Automatic Firearm (1979)
Sydney R. Hance's US design patent for an automatic firearm, filed 6 June 1977 and published 29 May 1979; its six views show the outward form of the Enfield bullpup (identified by Ferguson as the finalised XL64E5), not its mechanism. Cited by the SA80 dive.
- US Patent 1,142,896 — Lewis, Automatic Firearm (1915)
Isaac N. Lewis's automatic firearm patent, filed 16 April 1912 and granted 15 June 1915, assigned to the Automatic Arms Company of Buffalo. The Lewis Gun dive cites it for the gun's mechanism as patented.
- US Patent 1,355,417 — Pedersen, Firearm (1920)
John D. Pedersen's firearm patent, filed 28 April 1917 and issued 12 October 1920, one of the four patents behind the Pedersen Device. Cited by the Pedersen Device dive.
- US Patent 1,355,418 — Pedersen, Mechanical Movement (1920)
John D. Pedersen's "mechanical movement" patent, filed 29 May 1917 and issued 12 October 1920, one of the four patents behind the Pedersen Device. Cited by the Pedersen Device dive.
- US Patent 1,355,419 — Pedersen, Firearm (1920)
John D. Pedersen's firearm patent, filed 7 June 1917 and issued 12 October 1920, one of the four patents behind the Pedersen Device. Cited by the Pedersen Device dive.
- US Patent 1,355,420 — Pedersen, Firearm (1920)
John D. Pedersen's firearm patent, filed 12 July 1917 and issued 12 October 1920, one of the four patents behind the Pedersen Device. Cited by the Pedersen Device dive.
- US Patent 10,535 — Smith & Wesson, Improvement in Magazine Fire-Arms (1854)
The 14 February 1854 patent stamped on every Volcanic barrel: the toggle-link lever action and carrier, drawn for a copper-cased Flobert-type cartridge with a case extractor rather than the Volcanic ball the guns actually fired.
- US Patent 11,314,339 B2 — Sinden, Control Device for Detection (2022)
Sinden's border-tracking patent.
- US Patent 12,005,347 B2 — Brown et al., In or Relating to Gaming Controllers (2024)
Sinden's solenoid-recoil patent, read against the D13 regulated recoil stage.
- US Patent 15,925 — LeMat, Revolver (1856)
LeMat's first US patent, 21 October 1856: the shot barrel serving as the cylinder arbor and a two-hammer cock. Witnessed by C. Girard, M.D.
- US Patent 2,007,082 — Griffith, Marksmanship Practicing Means (1935)
Filed 1934-04-12. The light-projecting practice rifle: a gun that fires a beam at photocell targets, the first light gun.
- US Patent 2,007,083 — Griffith, Shooting Gallery (1935)
Filed 1934-08-06. The coin-operated light-ray shooting gallery; four of its claims were pressed in Phoebus v. Ford Amusement Devices (1936).
- US Patent 2,089,671 — Stecke, Automatic Firearm (1937)
Edward Stecke's automatic-firearm patent, filed 30 June 1934 and issued 10 August 1937. The HK PSG1 dive cites it in the prehistory of the roller-delayed action.
- US Patent 2,159,141 — Falkenberg, Electric Rifle Range (1939)
Filed 1937-01-11. The Rayolite range's drop-target mechanism.
- US Patent 2,181,948 — McClellan, Target Practicing Apparatus (1939)
Filed 1936-10-14. Multi-target photocell panel for a light-ray range.
- US Patent 2,510,831 — Patchett, Cartridge Magazine for Automatic Firearms (1950)
George Patchett's cartridge-magazine patent (British priority 18 April 1946; filed 16 April 1947; granted 6 June 1950), the Sterling's curved box magazine. Cited by the Sterling Mk 7 dive.
- US Patent 24,312 — LeMat, Revolver (1859): the movable hammer head
LeMat's 1859 US patent for the movable hammer head that selects between the cylinder and the shot barrel, with wings that lock the cylinder — the selector on every surviving LeMat, which is not in the 1856 patent.
- US Patent 3,236,154 — Iwashita (Howa), Mechanism for Reducing the Rate of Fire in Automatic Firing Arms (1966)
Kenzo Iwashita's Howa patent (Japanese priority 28 June 1963; filed 16 April 1964; patented 22 February 1966) for the straight-line hammer rate reducer that slows the Type 64 rifle's cyclic rate. The Type 64 dive's source for the mechanism.
- US Patent 3,283,435 — Koch (Heckler & Koch), Breech Closure (1966)
Theodor Koch's H&K breech-closure patent (German priority 30 October 1963; issued 8 November 1966) for the roller-delayed bolt. The HK PSG1 dive cites it for the G3-family bolt the PSG1 uses.
- US Patent 3,446,114 — Ketterer (Heckler & Koch), Trigger Mechanism for Automatic Firearms (1969)
Wilhelm Ketterer's H&K trigger-mechanism patent, filed 18 December 1967 and issued 27 May 1969. The HK PSG1 dive cites it for the G3-family fire-control group.
- US Patent 3,566,745 — Jauch and Meidel (Heckler & Koch), Automatic Firearm Bipartite Semirigid Bolt (1971)
The H&K two-part bolt patent of Jauch and Meidel (priority 28 October 1967; issued 2 March 1971). The HK PSG1 dive cites it for the bolt head and carrier relationship.
- US Patent 3,599,221 — Baer, Recording CRT Light Gun and Method (1971)
Filed 1968-03-18. The first television light-gun patent: a photocell gun that detects a spot on a CRT.
- US Patent 3,643,364 — Koch, Rifled Gun Barrel with a Curvilinear Polygon Cross-Section (1972)
Theodor Koch's polygonal-rifling patent (continuation of 26 September 1967; issued 22 February 1972). The HK PSG1 dive cites it for the H&K polygonal barrel.
- US Patent 3,728,480 — Baer, Television Gaming and Training Apparatus (1973)
Filed 1971-03-22, a continuation of a 1968-01-15 application. The Odyssey-era television game patent; Fig. 4 is the light-gun circuit.
- US Patent 3,736,693 — Koch (Heckler & Koch), Firearm Barrel (1973)
Theodor Koch's H&K patent on the fluted chamber (chamber relief grooves) of the roller-delayed guns (German priority 8 March 1967; issued 5 June 1973). The HK PSG1 dive cites it for why the chamber is fluted.
- US Patent 3,997,994 — Kästner et al. (Heckler & Koch), Shoulder Arm with Swivel Breech Member (1976)
H&K's G11 rotating-breech patent, issued 21 December 1976. The Hyper-Burst Mechanisms dive cites it for the G11's swivelling chamber.
- US Patent 4,078,327 — Möller and Ketterer (Heckler & Koch), Automatic or Semi-Automatic Small Arm (1978)
H&K's patent on the G11's recoiling-assembly small arm (German priority 8 October 1975, P 25 44 995; issued 14 March 1978). The Hyper-Burst Mechanisms dive cites it for how the G11 fires a three-round burst before the recoil reaches the shooter.
- US Patent 4,395,045 — Baer, Television Precision Target Shooting Apparatus and Method (1983)
Filed 1980-06-16. A raster-timing light gun that reports the hit position, with an infrared link back to the console.
- US Patent 4,435,728 — Raven and Annegarn, Field Frequency-Doubling Circuit for a Television Signal (1984)
The 100 Hz field-memory television that breaks raster-timed light guns.
- US Patent 4,443,775 — Fujitani et al., Solenoid Actuator (1984)
Slits in the solenoid frame against eddy-current loss.
- US Patent 5,309,815 — Möller et al. (Heckler & Koch), Firearm, Particularly Handgun (1994)
H&K's handgun patent, German priority 25 March 1991 and issued 10 May 1994, covering the USP-family design that the Mark 23 grew from, including the recoil-reduction system. The HK Mk23 dive cites it for the mechanism.
- US Patent 5,701 — Hunt, Loaded Ball (1848): the Rocket Ball
Walter Hunt's 1848 patent for the 'loaded ball' — the hollow-based Rocket Ball with its powder charge sealed by a perforated cap, ignited by the gun's own primer. The ancestor of the Volcanic ball.
- US Patent 5,825,124 — Ohno et al., Cathode-Ray Tube Having Activated Green and Blue Phosphors (1998)
Includes a table of P22-type phosphor afterglow, used for decay times in CRT Timing Vol 2.
- US Patent 547,454 — Schmeisser, Recoil-Operated Firearm (1895)
Louis Schmeisser's recoil-operated firearm patent, granted 8 October 1895 and assigned to Theodor Bergmann: the design behind the Bergmann 1894–1896 pistols. The Bergmann 1896/1897 dive cites it for the mechanism's origin and the Schmeisser–Bergmann relationship.
- US Patent 571,260 — Borchardt, Recoil Magazine-Pistol (1896)
Borchardt's US patent for the C-93, issued 10 November 1896: the moving-barrel toggle-locked action, the closing spring, magazine and lock, with three drawing sheets (closed and open sections).
- US Patent 6,869,285 B1 — Jones, Training Firearm (2005)
Filed 2003-06-11. A training pistol with CO2 gas recoil and a mechanically switched laser.
- US Patent 7,210,411 — Booth, Smith and Ashley (BAE Systems), 4.6 mm Small Arms Ammunition (2007)
BAE Systems' patent (GB priority 27 March 2003; granted 1 May 2007) for a hard steel 4.6 mm projectile with a copper coating thick enough that the rifling engraves only the coating. The HK MP7 dive's source for the armour-piercing 4.6 × 30 bullet's construction.
- US Patent 7,927,216 B2 — Ikeda et al., Video Game System with Wireless Modular Handheld Controller (2011)
The last live member of the Wii Remote patent family (to 2027-10-25).
- US Patent 710,411 — Bergmann, Firearm (1902)
Theodor Bergmann's firearm patent, filed 15 October 1901 and issued 7 October 1902, covering his locked-breech pistol design. The Bergmann 1896/1897 dive cites it for the No. 5 / 1897 locking system.
- US Patent 747,585 — Browning, Automatic Firearm (1903)
John M. Browning's automatic-firearm patent, filed 3 April 1902 and granted 22 December 1903: the blowback pocket-pistol layout of the FN 1903 and Colt 1903, from which the Eibar Ruby derives. The Ruby Pistol dive compares the Ruby with it, including the grip safety and safety lever the Ruby drops or moves.
- US Patent 753,414 — Luger, Recoil-Loading Small-Arms (1904)
Georg Luger's US patent for the redesigned toggle-locked pistol that grew out of the Borchardt C-93, issued 1 March 1904; describes the 'knee-press' toggle resting slightly below centre.
- US Patent 8,982,050 B2 — Solomon and Kisacanin, Motion Compensation in an Interactive Display System (2015)
Imperceptible complementary positioning targets flashed in the displayed image for a camera pointer.
- US Patent 816,591 — McClean, Automatic Gas-Operated Firearm (1906)
Samuel McClean's gas-operated firearm patent, filed 5 April 1898 and granted 3 April 1906, assigned to the McClean Arms and Ordnance Company of Cleveland. The Lewis Gun dive uses it for the McClean design the Lewis grew out of.
- US Patent 97,780 — LeMat, Revolver (1869)
LeMat's 1869 US patent, from the cartridge era of the design.
- US Reissued Patent RE45,905 E — Ikeda et al., Video Game System with Wireless Modular Handheld Controller (2016)
Reissued 2016-03-01 with a broad claim 1; expired 2026-09-15.
- USB Type-C and USB Power Delivery: Designing for both Extended Power Range and Battery-Powered Systems (SSZTD49A)
TI technical article on SPR/EPR fixed voltages and EPR cable and mode requirements.
- User Handbook, Sterling Sub-Machine Gun 9 mm Mk 4 (L2A3) — Sterling Armament Co.
Sterling Armament's user handbook for the Mk 4 (L2A3) sub-machine gun, in the edition whose "Brief history" (signed DTEH 1984) lists the Mark 6, Mark 7 and Mark 8. The Sterling Mk 7 dive takes its definition of the Mark 7 Para Pistol from it; the E-11 dive cites it for the donor Sterling.
- v. Mannlichers Selbstlade-Karabiner und Karabiner-Pistole m/1901 (Wille, 1902)
Wille's 1902 German description of Ferdinand von Mannlicher's self-loading carbine and carbine-pistol m/1901: mechanism, hammer lock, hold-open, the Mannlicher-Pieper charger and the parts. The Mannlicher 1901/1903 dive's primary source; it shows that the pistol collectors call the M1903 is Wille's Karabiner-Pistole m/1901.
- Virtua Cop — Instruction Manual (Sega Saturn, US)
Stunner controls, GUN ADJUST and accuracy advice.
- Vishay BPV10NF Silicon PIN Photodiode — Datasheet (Rev 2.3)
Fast PIN photodiode with a daylight-blocking filter; the IR Point Tracking bench photodiode.
- Vishay BPW34 / BPW34S Silicon PIN Photodiode — Datasheet (Rev 2.1)
7.5 mm² PIN photodiode: the CRT Timing reference sensor, and a rejected alternative in IR Point Tracking.
- Vishay BPW41N Silicon PIN Photodiode — Datasheet (Rev 1.6)
Side-view PIN photodiode with daylight filter; a rejected alternative.
- Vishay Data Formats for IR Remote Control (doc 80071, Rev 2.3)
Remote-control carrier frequencies and burst timing: what an IR light-gun sensor must coexist with.
- Vishay TEPT4400 Ambient Light Sensor — Datasheet (Rev 1.8)
Phototransistor comparison part: slower than a PIN photodiode.
- Vishay TSHG6400 High-Speed 850 nm Infrared Emitting Diode — Datasheet (Rev 1.5)
5 mm 850 nm IR emitter, ±27°; the emitter for the PixArt path.
- Vishay TSOP382.. / TSOP384.. IR Receiver Modules for Remote Control Systems — Datasheet
Demodulating IR receiver; test wavelength 950 nm.
- WCH CH224 USB PD Sink Controller — Manual 1, v2.1 (Chinese)
CH224K/D/Q/A and CH221K configuration tables and ratings (in Chinese).
- Weapon-Ammunition-System G 11 — English Brochure (Heckler & Koch / Dynamit Nobel)
H&K's English sales brochure for the G11 caseless weapon-ammunition system, with the Sterling, Virginia address (print code read as 10.88). Cited by the Hyper-Burst Mechanisms dive for the G11's specifications and by the Daisy dive for its 450 rpm figure.
- Worldsemi WS2812B-V5 Intelligent Control LED — Datasheet
Addressable RGB LED; source for the 2.7 V minimum VIH that decides whether a 3.3 V MCU can drive it directly.
- Xometry's Firearm Policy (last updated 9 June 2022)
Xometry refuses look-alike weapons that are 'fully solid or cannot function by design'; bears on outsourcing any part of the build.
- Yamaha V9938 MSX-Video — Technical Data Book (August 1985)
Light-pen mode: status S#1 FL/LPS and coordinates in S#3–S#6.
- ZDv 3/13 Das Gewehr G3 (Bundeswehr, 1978; amended 1999)
The Bundeswehr's central service regulation for the G3 rifle, issued in Bonn on 13 December 1978 and current to amendment 38 of 8 January 1999: description, handling, stripping, care and the illustrations. The HK PSG1 dive translates its mechanism, stripping and maintenance passages for the G3 family.
- Zonhen ZHO-0420S-05A4.5 DC Solenoid — Specification (rev B)
A real Chinese hobby-solenoid specification (bilingual): ±5 % resistance, duty cycle, temperature rise, life.
- 小銃取扱 — JMSDF Sasebo Training Unit Diary Sheet, 4 December 2023
A JMSDF Sasebo Training Unit diary sheet on recruits' rifle-handling training with the Type 64. The Type 64 dive quotes it on how the rifles are guarded even during breaks.
- 小銃取扱 — JMSDF Sasebo Training Unit Diary Sheet, 5 July 2024
A JMSDF Sasebo Training Unit diary sheet on rifle-handling training. The Type 64 dive translates its statement that the Type 64 is the first rifle a member of the Maritime Self-Defense Force handles, used at ceremonies and in regular live-fire training.
- 装甲車両・火器及び弾薬の開発・調達について — MOD Briefing on Armoured Vehicle, Weapon and Ammunition Development and Procurement (2011)
A Ministry of Defense briefing of February 2011 on developing and buying armoured vehicles, weapons and ammunition; slide 4-5 tabulates the production and development history of self-propelled guns and small arms, with contract quantities to FY2009. The Type 64 dive cites it for the rifle's production.
- 試作品の概要 新小銃てき弾 — MOD Policy-Evaluation Sheet on the New Rifle Grenade Prototype (FY2005)
An annex to the Ministry of Defense's fiscal-2005 policy evaluation summarising the prototype new rifle grenade (the later Type 06) fired from service rifles. Cited by the Type 64 dive. Image-only; no text layer.
- 防衛大学校達第19号 — National Defense Academy Directive No. 19 on the Storage and Handling of Weapons (1992, as amended to 2020)
The National Defense Academy's directive of 31 August 1992 (as amended to 21 October 2020) on keeping and handling weapons, with the maintenance-echelon table (別表第1). The Type 64 dive translates it for what is public about the rifle's upkeep.
- 防衛装備移転三原則 — Three Principles on Transfer of Defense Equipment and Technology (2014)
The National Security Council and Cabinet decision of 1 April 2014 setting Japan's rules for exporting defence equipment. The Type 64 dive translates it to explain why no Type 64 has reached a private owner abroad.
No documents match.