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MOTM

Index last updated: 2026-04-05 20:20 UTC

Message

Re: Vote for VCLFO design!

1999-05-04 by Paul Schreiber

The range on LO is about 1 cycle/min to 900Hz. HI is about 1cycle/3sec to
4Khz.

2U has a commanding lead after a late comback!

Also, since there are individual outs there is no WAVE SELECT switch per my
last post.

As far as phase reversal goes, this will be on a VC Quadrature LFO coming in
the fall. This is
non-trival design-wise to get MOTM-type quality.

Lastly, the SYNC will be a 'hard' sync exactly as in the '300 VCO: the
waveform resets to +5V
(as opposed to resetting to ground). This is because of the way the VCO
section is designed.
By playing with the SHAPE control and/or using an 'outboard' reversing
attenuator, you can get
"sync'd upwards sweeps" a la techno.

Paul S.

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