Archive of the former Yahoo!Groups mailing list: MOTM

I will be the fisrt to agree there is a need in some cases for using a
rotary switch
on a VCO to rapidly "find" a certain pitch.

However, the reason I didn't do this initially is as follows:

a) couldn't locate a good, sealed switch! Really! 99% of switches are
"open-frame"
types a la' Minimoog. Can you say "oxidize"? Can you say "noisy, drifty".

b) you would need say 8-10 0.1% 20ppm resistors to solder which is another
$20

c) then you need 10-13 wires back to the pcb. Yuck! I would have to have a
custom
harness made. More $$$

BUT.... let's say there was this module that had 4 DC voltage outputs that
was 12-bit accurate. ZERO
drift. With 50 presets (each of 4 outputs can be set from say -4V to +4V)
that you can call up by
a pushbutton, or a trigger pulse (advance to next preset), etc etc
..........You then set the VCO's COARSE to 12 o'clock
(the zero volt spot) then using a mixer (or maybe the module has 1 input
that adds it to
the preset out voltage: ie your 1V/oct keyboard voltage is added to the
preset voltage) and poof!

You got 4ea "rotary switch" but it has 50 positions with memory! I am in the
$159 kit arena here.

Paul S.
always thinking ahead. You guys are spoiling my secret module plans :(