Inside the Fender Vibratone edit / delete

A Leslie designed for guitarists.

to amplifier audio guitar leslie retrotech ... on 18 July 2016

requesting Sinclair X-20, X-10 information - diyAudio edit / delete

Schematics for Sinclair's PWM amplifiers.

to amplifier audio electronics sinclair ... on 21 June 2016

Popular Electronics Magazine edit / delete

All SWTPC (of later home computer fame)'s Popular Electronics projects. Includes several generations of a neat transistor amplifier project, and other standard 70s audio fare. The guitar amp stuck out as one worth cribbing ideas from (e.g. the tone controls which I've never got right on my practice amp...).

to amplifier audio electronics hifi retrotech swtpc ... on 01 May 2016

Hi-Fi, DIY Projects edit / delete

60s/70s audio projects -- mostly amplifiers and mods to them -- from Hi Fi News and similar magazines.

to amplifier audio electronics etext hifi retrotech ... on 18 April 2016

Spectrally Challenged - distortion spectra of audio power chips edit / delete

"This very interesting article by Ben Duncan appeared in the October 1993 issue of Electronics World + Wireless World magazine in the UK. In it, the author tests ten popular power amplifier chips and explains, amongst other things, how the distortion spectra are important in terms of sound quality." The LM386 is -- as expected -- terrible.

to amplifier audio distortion electronics harmonics ... on 31 March 2016

Minima -A general coverage transceiver edit / delete

From the designer of the BITX transceiver: a multiband SSB radio built from common parts with clever use of a microcontroller. The mixer design is particularly neat.

to amateur amplifier electronics hf lpf microcontroller mixer radio ssb transceiver ... on 22 March 2015

CordellAudio.com - Papers edit / delete

Some interesting publications on analysing audio equipment (on a minimal budget).

to amplifier audio distortion electronics ... on 11 July 2013

Tronola DIY Electronic Projects and More edit / delete

Everything from building a solid-state RAM board for a PDP-8 to upgrading a bunch of classic American hifi amplifiers. Interesting.

to amplifier audio electronics retrocomputing test-equipment ... on 28 May 2013

The 5532 OpAmplifier, part 1 - ELEKTOR.com | Electronics: Microcontrollers Embedded Audio Digital Analogue Test Measurement edit / delete

Building a power amp from 32 5532s (courtesy of Doug Self). I suspect the cost of the chip sockets makes this uneconomic.

to amplifier audio electronics pa ... on 26 November 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

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