[sdiy-interim] Modular CV range standards

[John Mahoney]

At 12:29 PM 3/30/2007, Amos wrote:

>I am thinking about putting together a few little controllers (I have
>a nice joystick in need of hacking, and some other things), and I just
>realized that I have no idea what if any standards are in place for CV
>ranges.  The majority of stuff I've ever dealt with was in the -5V to
>+5V range, but now that I am looking around I see a lot of +10V (not
>as many -10V?) and the Schippmann Ebbe und Flut seems to accept +15V!
>
>Can someone with more experience, perhaps share details of who uses
>what voltages?  It would seem simple enough to make the output of my
>joystick or LFO-box or whatever, switchable between standards if I
>knew what they were.

The Wiard JAG is switchable between +/-5V and 0-10V:
         http://www.wiard.com/1200/JAG/jag.html
Seems like a sensible approach.

I'd like to have something like the old Octave-Plateau Catstick:
         http://www.oldtech.com/synth/OctCatstick.html
A joystick, 2 LFOs, 4 VCAs (inverting and non), range controls for 
each axis, etc... Looks good, no?

This French page is informative, though the details of the outputs 
are incomplete (if not slightly inaccurate):
         http://www.oldschool-sound.com/index.php?rub=19&machine=151
Anybody got more info on the Catstick, in English? :-)
--
john


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