[sdiy] MXR Pitch Transposer Schem/Circuit

Steve Ridley spr at spridley.freeserve.co.uk
Mon Mar 11 11:42:53 CET 2013

>> I think something like this could be done with BBDs but the
>> artifacts of the modulated clock would surely be "interesting"!

I vaguely remember seeing a circuit (or app note) for this. It used two
BBDs and was intended for dictaphones - so they could play stuff back
slow enough to type but keep the pitch fairly constant. I guess quality
wasn't critical.


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