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Subject: Ext filter signal?

From: ultragalore@...
Date: 2015-05-27

Hi All,


I have a hard time finding the modification for routing an external audio signal through the  2069 filter. Somewhere on the internet someone proposed to switch the noise signal but that does not sound very logical to me. I thought to just add a signal to pins 20/21 which are the normal 'signal in' pins.


I am a bit worried about 'breaking' the 2069 though, also heard they're pretty delicate... 


Does anyone have the good solution for this?