MOTM

#3 - step in 7/12 of a volt, to step in fifths.  

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: Paul Schreiber [mailto:synth1@...]
> Sent: Saturday, August 07, 2004 11:48 AM
> To: MOTM litserv
> Subject: [motm] VC Divider opinion
> 
> 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.
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>