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Dariusz Bohusz

Dariusz Bohusz

Technical data: 8 months of hard work with great scheme A2 PASS. Weight - 80KG each mono-block. No additional cooling… More...
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Herbert Fu

Herbert Fu

The Son of Zen is the most massive amplifier project I undertook. The result is really impressive. The performance of… More...

Amp Camp Project — Pass DIY / 2016

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Build The Amazing FET Circlotron — Michael Rothacher / 2008

Cue the Theremin music! This article is about building your own all-FET Circlotron. It smashes atoms. No, strike that. It won’t smash atoms like a cyclotron, but it has a really cool name and it is, technically speaking, powered by atoms and very, very good at amplifying music. Alpha M. Wiggins of Electro-Voice is generally recognized as the inventor of the Circlotron amplifier although other inventors developed similar circuits around the same time period in the 1950’s. The Circlotron’s transformer-coupled vacuum tube output circuit, a floating bridge, was often drawn in a circular fashion; hence the name. Later, Circlotron-type output… More...

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