[sdiy] LDR optocoupler blowout

[Lanterman, Aaron]

On Sep 28, 2012, at 11:43 AM, John Speth wrote:

> These two comments got me to thinking: I wonder if one could use a speedup
> circuit to compensate for slow LDR response by driving it harder for quick
> changes and less for slow changes.

The Buchla Music Easel balanced modulator (multiplier basically) uses a set of vactrols in which -- if I follow the circuit correctly (which is a dubious assertion) -- some of them essentially linearize the response of the others. And they're operating in the audio region.

- Aaron