Low Power Vacuum Tube PreAmp

I have wanted to learn more about vacuum tubes for years but was always put off by the extremely deadly power requirements. Working with low power sources for so long, I have blown my fair share of capacitors, which is scary enough for me. Recently I discovered the world of sub-miniature vacuum tubes and the … Read more

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Germanium Fuzz using MP16b PNP transistors

The perfect layout for using the MP16b transistors that I have been importing from Russia. This layout is based on the Sabro Fuzz Face layout. I moved the bias from inside to the top so you can go from scuzzy velcro to full-on fuzz. I also dropped a line from the vero that was unused. … Read more

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Pitch control for cassette players

Figured I might as well post this stripboard layout that I did for the cassette player speed mod. It is based on a drawing from the old Casper Electronics website. Only requires a small piece of stripboard (4×6 ) and 5 components. There are other ways to affect the speed of a tape player motor … Read more

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Noise567

Classic Noise Circuit Design with telephone tone IC

I have been building a couple of these ultra simple Noise567’s here and there, what a great little circuit! Super noisy, accepts an input, and has the craziest distorted ring modulator/fuzz depending on pot position. The only drawback so far has been that it has a constant VCO running that you play over. It’s fine … Read more

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