Evil Science Audio
Electronics Service & Repairs in Portland, Oregon
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Repairs & Restorations
Bogen MO-100 P.A. Amplifier
Dunlap-Clarke Dreadnought 1000
HP 200CD Wide Range Oscillator
Marantz 2270 Receiver
Tektronix Engineering Power Supply
SMD Repair: Eleven Rack Guitar Effects
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Tube Audio Designs
Custom Guitar Amp Prototype Build
My 6KV8 Push-Pull Driver Board
Reference Library
Tube Manuals & Data
Guitar & Instrument Amp Schematics
Hi-Fi Schematics
Switch-Mode Power Supplies
Archive for the tag "audio"
Eico HF-81 Rebuild
December 22, 2017
Custom Guitar Amp Prototype Build
December 22, 2017
The 89Y SE Headphone Amplifier
July 3, 2016
The 89Y SE Amplifier – In Progress
October 14, 2015
Single Ended 6K6 Amplifier – a Gift!
January 14, 2014
Push-Pull 6B4G Amplifier
November 12, 2013
Single-Ended 6B4G Amplifier
November 4, 2013
Single-Ended 1626 “Darling” Amplifier
November 3, 2013
Low Voltage Single-Ended Madness!
November 3, 2013
Push-Pull 5881/6L6 Amplifier
November 2, 2013
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