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 amplifier"
Eico HF-81 Rebuild
December 22, 2017
Custom Guitar Amp Prototype Build
December 22, 2017
The 89Y SE Headphone Amplifier
July 3, 2016
Push-Pull 7C5 Amplifier in Vintage Style
June 28, 2016
Single-Ended Loktal amplifier
November 2, 2013
