Jack, have you looked at the Magnatone vibrato? I believe the varistors are the tricky part. But I understand there are some workarounds with modern partsTriodeLuvr wrote: ↑Tue 03/09/21 2:12 pmSeriously, I can't ever leave anything alone. What I really want (in one effects chassis) is a pitch-shifting tremolo driven by it's own LFO (low frequency oscillator), and a "standard" amplitude-shifting tremolo driven by a second LFO. I want the ability to control speed of the two independently, or to drive the two shifters simultaneously from one LFO, either in phase or out of phase with each other (selectable). That's not too much to ask, is it?
Also on this subject, if you were going to add standard tremolo to a non-tremolo Marshall using an effects loop, how would you implement it? Would you use a preamp tube as is done inside the Tremolo TMB? Would you consider an opto-coupler or some other method acceptable instead?
Jack
-Dan