Evil Science Audio
Services
Repairs & Restorations
The Fisher 125-AX – Restoring Fisher’s 1957 beast!
Eico HF-81 Rebuild
Bogen MO-100 P.A. Amplifier
Dunlap-Clarke Dreadnought 1000
HP 200CD Wide Range Oscillator
Marantz 2270 Receiver
Tektronix Engineering Power Supply
Audio Projects & Designs
6KV8 Push-Pull Driver Board
Push-Pull 7C5 Amplifier in Vintage Style
Single-Ended 807 Amplifier
14N7/14AF7 Loktal Preamplifier
Single Ended 6K6 Amplifier – a Gift!
Single-Ended 6B4G Amplifier
Single-Ended 1626 “Darling” Amplifier
Single-Ended Loktal amplifier
Push-Pull 6V6 Amplifier
Reference Library
Tube Manuals & Data
Guitar & Instrument Amp Schematics
Hi-Fi Schematics
Switch-Mode Power Supplies
MyTec Electronics
Audio Projects & Designs
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