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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

Message

Fine Tune LED

2005-02-01 by Mike Walters

How hard would it be to wire an LED to show the beat frequency of two 
oscillators? Like the Polymoog, and some other synths. I'm looking 
for a circuit that will show if the 2 oscillators on a Moog Prodigy 
are in tune before I play them. Seems like it would be pretty simple.
Thanks!
Mike

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