There is not a problem with shorting across the AC coupling cap.
Paul S.
----- Original Message -----
From: "gregorykjar" <g@...>
To: <motm@yahoogroups.com>
Sent: Saturday, February 10, 2007 4:10 AM
Subject: [motm] DC-coupling MOTM120
Hi
Recently I got the 120 sub mux and this is a nice module for a lot of things.
But the other
night I tried to feed it 2 LFO squares and then feed the output of the 120 to
the 1V/oct input
of my 300 VCO. Interesting patterns. But it wasn´t a stepped sequence as I
expected and it
turns out the 120 is AC coupled. (you don´t get sustained notes, but note
glitches) I know
Paul has made the AC coupling with a reason but would it be possible to bypass
the AC
coupling capacitor? As far as I can see from the schematic its only C7 between
the summing
opamp and the output opamp. Would such a DC coupling cause instability, DC-drift
etc. The
DC coupling could make all kind of nice selfgenerating sequences. (and it would
be easy to
make a switch to switch between the two modes). Whats do you say Paul (or
anybody) can I
do this without harming the circuits? Or would I get problems. A little bit of
DC-offset wouldn
´t be a problem.
Greetings from Denmark
Gregory
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