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Subject: Re: Mother of All Bandpass?

From: "J. Larry Hendry" <jlarryh@...
Date: 1999-05-14

Hell, its modular. Load it up and go for the extra features. However, I
would buy either one (since it will be 2 years into the MOTM expereince
since I know anything anyhow). <g>

BTW, I finally got started on the oscillators. I am building both at the
same time, so I am still in the resistor stage. Based on available time
and rate of progress, I will be middle of next week I suspect (unless I
just totally ignore the 10" tall grass).

Where was that resistor print error in the instructions? I have not found
it yet.
Larry H.

> From: Paul Schreiber <synth1@...>
> To: MOTM listserv <>
> Subject: [motm] Mother of All Bandpass?
> Date: Thursday, May 13, 1999 11:59 PM
> 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
> individual DEPTH. All filters move the same amount (they just have
> 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,
> sweep). Free.
> Well?
> Paul S.