Quote Originally Posted by Frank Giger View Post
I wouldn't sweat a milisecond here or there - or even longer - between flash and bang. Nobody outside of the pilot is going to notice.
Yeah, but it's ****ing me off. :-)

I think it's due to capacitors charging. The audio input is a strong impulse, and most designs are slanted towards music. The big whomping voltage hits, and doesn't get passed until the capacitor's charged. No question it started working better when I reduced the RC time constant for the 555.

But I'm having a good time. Don't think I've built a transistor amplifier for nearly 30 years; worked some IC stuff slightly more recently. Been having some construction issues...worked fine in breadboard, but DIDN'T work when soldered onto a board (yes, I heat-sink the transistors). Gotta work that one out. I used to hand-solder ICs to circuit boards without sockets, and I'm hoping the hands have not lost what cunning they used to possess.

Ron Wanttaja