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"These are the "Ramblings" of Bob Roberts and may not necessarily be the popular consensus, but rather things that have always worked for me, along with some "How to's" and ideas I have picked up on over my 40 years of fixin' coin-op stuff."
to arcade electronics games mechanica repair retrocomputing ... on 12 September 2017
... and, more importantly, the "Membership Card" homebrew 8-bit computers -- now in Z80, 1802, 6502 and 8080 versions.
to 1802 6502 8080 electronics homebrew membership retrocomputing z80 ... on 12 September 2017
"A Basic Guide to PA Systems and Equipment in Live Sound Applications". Lots of useful material here!
to amplifier audio electronics live microphone mixing pa ... on 13 May 2017
Microphone Database | RecordingHacks.com
Searchable by manufacturer, type of microphone, properties, etc. Primarily aimed at mic modders, so has quite a bit of information about cheap Chinese microphones (and less historical info).
to audio electronics microphone recording ... on 13 May 2017
Dual Channel Blackface-style Preamp for Bass Guitar
Clone (sort of) of the Alembic F-2B, a rackmount version of the classic Fender preamp and tone stack. The Alembic remains absurdly expensive so this might be an interesting project... although I'm really not convinced about the safety of his PSU arrangement! (You'd have to do something different for 240V anyway, e.g. two transformers back to back.)
to alembic bass david-gilmour effects electronics fender music preamp ... on 06 April 2017
Proposed Electronic Calculator, by Alan Turing (48 pp.) undated
Proposal for what became the ACE, circa 1945. Among many other things, this introduces the BURY and UNBURY opcodes (which these days we'd call PUSH and POP) and their application in function linkage.
to ace architecture electronics history retrocomputing turing ... on 05 April 2017
Solid State Relay Primer - Phidgets Support
An excellent overview.
to electrical electronics microcontroller motor relay ssr ... on 12 March 2017
Reverse-engineering cheap ARM microcontrollers, and some very fancy LED lighting projects.
to electronics led microcontroller reverse-engineering ... on 06 March 2017
Lots of interesting electronics, security and retrocomputing projects; in particular, PDP-11 restoration and interesting USB input devices.
to electronics retrocomputing reverse-engineering security usb ... on 26 February 2017
Shift1 System for 1-wire Shift Registers
Expanding a single output pin using a shift register and a couple of RC delay networks for clock and latch pulses.
to electronics io microcontroller shift-register ... on 26 February 2017
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tasty by Adam Sampson.