cutting highs on ad3208?

Started by ppatchmods, November 05, 2010, 10:52:28 AM

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ppatchmods

built an ad 3208 and love the sound. i let my bro play it and he wanted to know if i could cut some highs from the repeats. anyone done this or know about where to look on the schematic? thanks

When your life is over, will any of this STUFF really matter?

Mark Hammer

Yes.

See that 100k resistor that feeds the compander chip from the wiper of the Repeat control?  Split it into a pair of 47k (or a 51k and 47k if you want to be picky) in series, and run a cap from their junction to ground.  The rolloff is given by Freq = 1 / [2 * pi * Rmeg * Cuf).  So, for example, 47k and .0047uf to ground gets you a rolloff starting around 720hz.

Pretty simple, eh?

ppatchmods

nice! thanks Mark! oh by the way, you were helping with the dry out on this circuit a while back. i posted my switch concerns on this thread: http://www.diystompboxes.com/smfforum/index.php?topic=84679.0

i'm gonna give this a try this weekend, but do you see a better way to wire it? thanks so much!
When your life is over, will any of this STUFF really matter?