Archive of the former Yahoo!Groups mailing list: MOTM
Subject: Mother of All Bandpass?
From: "Paul Schreiber" <synth1@...
Date: 1999-05-14
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
center freqs).
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
"backwards". )
The LEDs would pulsate at that filter's LFO rate. (in German: "Das Lites
gablinky!")
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
sweep). Free.
Well?
Paul S.