HICKOK: Model 800, Tube & Transistor Tester

HICKOK Model 800 tube tester 1 714be7393aeb

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ROSE MUSIC: CSA. Model 35 PA Amplifier (Goldentone).

CSA 35 PA head front 1 647c09adae61

This one’s a rare find – a Communication Systems of Australia valve PA head, ~35 watts from around 1967 / 68.  It’s super clean, fully functional, with all parts within spec. Anyone familiar with vintage Australian guitar amps will recognise the front panel straight away: it looks just like a Goldentone.  That’s no accident.  These … Read more

COLORSOUND: Treble Booster, Steve Williams (partial trace)

Colorsound treble booster SW v1a 63b78e94114f

So there are a few bits missing, but if you are familiar with treble boosters, I’m sure you’ll work it out.  Being a small and simple circuit, it’s a good candidate for breadboarding. The filter pot is your standard input blend, probably similar to the values that Steve Williams uses in his Pigdog Competition Special … Read more

BELL & HOWELL: Model 385 Amplifier Schematic

Bell and Howell Filmosound 385 6V6 model schematic 1 cf272ab28b07

The original schematic for the 385 was killing me – just too many part numbers listed, so I cleaned it up a bit.  I also removed the projector circuits. I think there are two versions of this amp – this is the 6V6 version, while the other uses EL84s (which is nearly impossible to find … Read more

FENDER: Deluxe 5E3 Amplifier

1960 fender tweed deluxe 5e3 551 a5aed0b68571

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