- Joined Apr 19, 2016
I searched the forum first before posting. I found this circuit in the book Timer, Op Amp, & Optoelectirc Circuits & Projects by Forrest M. Mims III. I set it up on a breadboard and it works great. I just don't know why it works. I have a few theories, and I've tried measuring with a digital vom, but I'm still boggled. If anyone has the time, please explain what's happening.