On 8/27/05, Olin Lathrop wrote: > Byron A Jeff wrote: > > What's simpler than a 12F629 programmed to do this activity? > > A 10F200 to do this activity. > I was an inside a projector the other day (an old RCA TP-66) and I noticed one of the relays is set up to do this already. It has a mechanism like a push-on/push-off power switch built into the relay. I believe it is the mag/optical sound selector. By no means the simplest solution (and I have no idea where you'd source such a relay today), but it's fun to watch. 60's technology in action. Regards, Mark markrages@gmail -- You think that it is a secret, but it never has been one. - fortune cookie -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist