Manuals, PDF data sheets, images, and other information of interest...
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Audio Equipment
- Altec 1593 50W power amp spec sheet
- Altec 1594 100W power amp service manual
- Altec 1568 40W tube power amp service manual
- Apt Holman APT-1 power amp owners manual
- McIntosh C20 Schematic
- McIntosh C26 Service Manual
- McIntosh MX-110 service manual
- AKG K601/K701 headphone schematic and service manual
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Engines
- CONTINENTAL MOTORS Historical Writeup
- Honda GX160 owner's manual
- Lister-Petter TR series engine spec sheet
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Generators
- Kohler 45RZ Manual
- Kohler 45RZ spec sheet
- TM 11-915 a military technical manual for the PE-84 generator set
- TM 11-929 part 1, for the PE-145 (which is identical to the PE-84)
- TM 11-929 part 2, for the PE-145 (which is identical to the PE-84)
- TM 11-929 part 3, for the PE-145 (which is identical to the PE-84)
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Radio
- A listing of early FM broadcast radio stations in 1944 and in 1948.
- Newark 1937 Ham Radio Flyer
- Sinclair Q202G-DI VHF Duplexer Spec Sheet
- WJ9J DTMF Controller Manual
- GE TQ-3370 programmer schematic
- I built one of these from standard through hole parts (except the flash circuit) and I use it often
- A humorous drawing of the Micor Squelch circuit adapted to an EFJohnson radio
- This was taken from the repeater builder website
- Low Power AM handbook
- MDX programming cable
- KMC/500M Programming cable
- Com-Spec TS-32 Manual and Schematic
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Pagers/Paging equipment
- Pager Handbook for the Radio Amateur
- This was put out by Kantronics, I am simply hosting it here since it is fairly difficult to find. Useful for explaining the basics of paging as it relates to Hams!
- Motorola Advisor Service manuals (all bands, ZIP file)
- I had to pay $15 for this electronic copy, my loss is your gain!
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IC's, Semiconductors, and other parts
- 2N3055 Spec Sheet
- 2N4402 Spec Sheet
- 2SD2177 Spec Sheet
- ISD4003 Spec Sheet
- It seems the ISD "chip-corders" are no longer made by WinBond, or anyone else for that matter...
- International_Rectifier IRFZ44N Spec Sheet
- LM555 JAN Spec Sheet
- LMX1501A Spec Sheet
- Gordos 83 series reed relays Spec Sheet
- LM13080 Spec Sheet
- OPA373 Spec Sheet
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Nixie tube stuff
- NixieClockcircuit.gif
- Burroughs B-5859 nixie tube datasheet, page 1
- Burroughs B-5859 nixie tube datasheet, page 2
- HP nixie module diagram sheet 1, sheet 2
- these were used in older HP test equipment. This shows the ingenious use of neon bulbs and photo sensitive cells to create a BCD to nixie decoder.
- Mike Harrison's Nixie Clock Schematic
- I built one of these, used this schematic as the basis, but I made several design changes. It has an isolation transformer, its 24 hour, and has seconds.
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Locksmithing and Keys
- Best Key System Depths
- This is a chart that shows the key depths in inches of the three Best key systems
- Best Keyways
- A pictoral view of Best Keyways and their letter designation
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Test Equipment
- Eico Model 460 Oscilloscope Service Manual
- Fluke 187/189 Manual
- This is my DMM of choice!
- HP 204C Oscillator Service Manual
- HP 3406A Broadband Sampling Volt meter Service/Operating Manual
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Relaying and Power systems
- GE's Art and Science of Protective Relaying
- A 1919 AIEE writeup on the first 220kV transmission line in California. Very interesting read.
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Electrical/electronic Stuff
- Ohio Semitronics CT7 & CT8 Current Transducer Spec Sheet
- A 1959 write up entitled "Tubes or Transistors", an interesting look back at electronics history
- A Schematic for a 1Hz vacuum tube time base, NOT my work.
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Misc./Humor
- no choking the chicken, beating the meat, or spanking the monkey
- A Joke Data sheet made by signetics in the 70s
- A PDF sheet on how to identify older, American made Automatic Transmissions (not a joke)
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Forklifts and Equipment
