Archive of the former Yahoo!Groups mailing list: MOTM
Subject: Mother of All Bandpass?
From: "Paul Schreiber" <synth1@...
The current design of the '410 filter has the LFO ouputs running "in
parallel" to all
three filters. They are equally summed, so there is a MASTER depth, but no
individual DEPTH. All filters move the same amount (they just have different
PROPOSAL (this will make Dave happy!)
Go to a 3U wide.
Replace the LFO DEPTH pot with 3 individual DEPTH pots.
Add 3 LEDs. The LEDs are analog. The brighter they glow, the higher that
associated bandpass filter frequency is (no bitching if this seems
The LEDs would pulsate at that filter's LFO rate. (in German: "Das Lites
Add LFO OUT jack for other module fun.
Added kit cost $30-$40. We are now in the $229 kit arena.
Another way: 3 slightly different summing resitotors (narrow, mediium, wide