Re: Convert Vintage Valve Radio to Guitar Amp
The Vellemann kit as is has a low (2k2) input resistance. However, with a few changes in resistor values and a TL071 substituted for the 741 the PCB could be just the job.
The PSU for it would need to be a common terminal voltage doubler rather than the bipolar version I suggested before. Could use the same Ds and Cs, though.
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