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MOTM

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New VCA teaser

2006-02-15 by Paul Schreiber

I am debugging the Frac VCA (MOTM-1190) which is the 'core' for the MOTM-130 
Pan/Fade VCA.

Happy to report this is a cool module:

a) the input has an "overdrive" so that at full level, a "warping" THD will be 
present (triangles getting 'sin-ed')
b) the output side has a 2-transistor 'gentle clipper' for rounding of signals 
above +-6V pk-pk

The design uses no OTAs (like the '110 and the '190). I will run plots of 
frequency response and THD later this week.

The Frac version does *not* pan/fade but the MOTM version will.

Hats off to JH for another winner.

Paul S.
back to the bench

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