Cgs synth

I've been wanting to incorporate some light-sensitive controllers into my
modular setup... I've got some CDS light-sensitive resistors, but they're
pretty variable in terms of their light/dark resistance ranges, plus light
levels in performance are pretty variable... so i'm thinking some kind of
variable dc amp? so i can set the sensitivity and range?

and then i'm thinking that ken's dc mixer might be just the ticket. could i
just connect the CDS between +power and a single input, then tweek the
controls to get offset & range?

i guess doepfer has something along these lines:
(http://www.doepfer.de/a179.htm), w/ inverter and gate detector (simple
comparator?)


lbd

>and then i'm thinking that ken's dc mixer might be just the ticket. could i
>just connect the CDS between +power and a single input, then tweek the
>controls to get offset & range?

That may work. If it doesn't work as well as you would like, add an extra
resistor between the input and -ve. What value? well-- probably something
like 100k, but you would need to experiment.

Ken
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Ken Stone sasami@...
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