I've got a (Vellerman) PWM device which is DC controlled. I'd like to use
it such that it fades up to max when a simple DC switch is made, then
fades out when it is broken. I can get it to do this using a simple RC
circuit - but the 'law' of the fades isn't as linear as I'd like. Any
clever way of doing it?

--
*Strip mining prevents forest fires.

Dave Plowman London SW
To e-mail, change noise into sound.