Inspired by this (thanks to Cortexturizer)
Something like this
Some classic circuits tweaked to perfection. The pedal is insanely pricey, but I get it. There's a lot going on in there. If I had enough time maybe just maaaybe I would attempt a build like this but I doubt I could pull it off. Not saying this is the most complicated build out there, but it would be an ultimate pedal for me, hells one could start a band around this pedal alone hahah.
I remembered the fun you can have with ringmodulators on synthesizers.
I also have a far memory of John Scofield using one on several occasions (probably from a Line 6 MM4 Modulation Modeler).
So that made me look for an easy solution to analogue multiplication (without using transformers and rectifiers like the old).
Here are some schematics:
http://experimentalistsanonymous.com/diy/Schematics/Ring%20Modulators%20and%20Frequency%20Shifters/Older designs seem to rely on the (obsolete?) 1496 ic. But there's also the
AD633:
That chip does all the hard work and you just need to add an oscillator to have a carrier:
(based on
http://www.sowa.synth.net/modular/rm.html)
Has anyone here already tried this or a similar design?
Edit: I wonder why the op amps (at pins 1 and 3) are biased with a trimmer. Shouldn't ground be fine?
Edit 2: Of course, there should also be the option to use the input signal also on the second input (instead of the carrier wave) to get a nice octave up effect.
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