Evil Science Audio
Electronics Service & Repairs in Portland, Oregon
Main
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
Contact
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
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