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Another Art of Electronics fan, I see... The robot arm converted to a giant 3D printer is fun.
to electronics repair robot ... on 28 July 2012
BattMan II: Build a Computer Controlled Battery Manager edit / delete
I'd been considering building something like this myself (having got fed up with generally crappy off-the-shelf battery chargers, which are generally enough of a pain to make it not worth me using rechargables). Looks good.
to battery charger electronics ... on 28 July 2012
Schematics - Novachord.com edit / delete
What it says. I'd love to do a FET clone of this.
to audio electronics hammond novachord synth ... on 19 June 2012
Alan Yates' Laboratory - 555 Super-Regenerative IF HF Spectrum Analyser edit / delete
Very neat!
to 555 electronics radio test-equipment to-build ... on 19 June 2012
Amazing All-Band Receiver edit / delete
Crystal set with no preselector -- so it receives everything nearby. Looks like an interesting project.
to electronics radio receiver to-build ... on 19 June 2012
The Douglas Self Site edit / delete
Audio electronics, and a fascinating collection of obsolete engine technologies. Steam engine using boiling petrol as a working fluid, anyone?
to amplifier amusements audio electronics engine engineering mechanica retrotech steam valve ... on 19 June 2012
Valves And Transformers (Contents) edit / delete
A decent selection of transformers for valve circuits. Including very large power transformers...
to electronics psu shopping transformer valve ... on 18 June 2012
With simple one-knob tone control that'd probably do for my guitar amp.
to audio electronics tone ... on 15 June 2012
Saccade - John Peterson edit / delete
I like the wirewrap teaching setup.
to electronics retrocomputing ... on 27 May 2012
NwAvGuy: Behringer DAC Modifications edit / delete
Replacing the headphone output op-amp on a UCA202.
to audio behringer electronics headphone uca202 ... on 03 May 2012
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tasty by Adam Sampson.