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|Subject: Re: pianocorder to Midi IN|
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Date Posted: 14:59:41 04/30/19 Tue
In reply to: jeyf 's message, "Re: pianocorder to Midi IN" on 11:38:00 04/30/19 Tue
Many squaring circuits are based on using a voltage divider to add a DC offset to the input signal then using an op amp or two to slam the input against the rails. Look at the schematic for the Pianocorder PT-100 cassette deck for a pretty reliable design and just run it on 5V instead of 12V.
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