Uploaded August 2026 | Updated September 2026, 1 week ago

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This clone of a 1950s Valco Supro Tube Guitar Amplifier started life as a 1950s 45RPM 7" record player. The guts were taken out and the new amp built in its place with 6SL7 preamp, 6V6 output tube, and 5Y3 rectifier. It also has a vintage Jensen 6x9 speaker which is from the 1960s.

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♠RECOMMENDED BOOKS
-RCA TUBE MANUAL amzn.to/2GOBVqS
-Designing Tube Preamps for Guitar and Bass: amzn.to/2DK5tmt
-DESIGN AND CONSTRUCTION OF TUBE AMPLIFIERS: amzn.to/2HSNMne