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TremoDrive Demo

This is a demo of my home made TremoDrive, a circuit from Rick-Tone by Rick Campbell. It's a tube driven clean boost and tremolo. The effect uses mains power that's transformed using a couple of inexpensive 12 V transformers back to back, into an integrated full wave bridge rectifier and then off to a 33 uF electrolytic cap that provides a nice steady 210 V DC. The tube in question is a 12AX7 twin triode from JJ in Slovakia. The first triode valve is the voltage amplifier (i.e the clean boost), and the second valve is the oscillator for the tremolo. I used a couple of relays for switching, so I could use a separate, remote foot switch without sending the signal all the way from the box to the foot switch and back again.