[sdiy] Volt per Octave

[The Peasant]

Hello, Thomas,

I have never seen or heard of a tube type keyboard 
controller, the S&H section would be a bit tricky with 
tubes, but not impossible. Maybe you could design one 
yourself, then you can say you were the first!

Take care,
Doug
(Designer of the worlds first all tube ADSR)
______________________
The Electronic Peasant

www.electronicpeasant.com


Quoting Thomas Holley <thomasholley at adelphia.net>:

>     I am attempting to put together a modular synthesizer
> made entirely, or as much as possible, with vacuum tubes.
> I have gathered much information from many of you at
> various web sites. I am almost ready to bread board
> several designs I have modified or procured from the web,
> some out right ridiculous like a moog ladder with vacuum
> tubes but I am having difficulty with a reasonable design
> for a keyboard controller. I would like to use the one
> volt per octave standard that seems to go along with the
> majority of equipment. I can't seem to find a descent
> schematic or tutorial to guide me through the basics of
> the control circuit and it's drive of the VCO. Any and
> all help would be greatly appreciated.
> 
> Thomas