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VC Divider opinion

2004-08-07 by Paul Schreiber

Yes, I'm blowing the dust off the VC Pulse Divider project today (sorry, I need
a diversion from kitting/shipping/soldering/endless loop). Also, I have had over
$600 in parts I bought for it sitting in the closet for 3 years now :)

There is an 8-step output (3 bit counter into a DAC), and I can select 3
different scalings via panel toggle switch. Here is what I have sketched in
there now:

#1: steps are 1V, so we "step in octaves"
#2: steps are 1/12th volt, so we "step in ...errr. whole steps"
#3: steps are 3/12th volt, so we "step in 3rds"

Any other suggestions? I plan to use 0.1% resistors here to get quite accurate
(trying to have no trims).

The counter has a panel switch to select either the CLK IN or the /N to drive
it.

For newbies: this module can simultaneously divide an input by /2 to /32 or /1.5
to /32.5 (the variable /N which *is* voltage controlled) along with "fixed"
outputs of /2.../9 & /16). I'm whipping up a breadboard for Robert Rich to use
on the new CD. It uses 2 PIC controllers and has a nice 3-digit LED display. I'm
*guessing* the kit price is in the $239 area. Has a LOT of jacks (like 17?) The
outputs are 0 to +5V square waves at 50% duty cycle, so they can be used as
audio OR triggers into EGs, etc.

Paul S.

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