I'm trying to get this thing working on breadboard with E817 Optoisolators and no-dice. I'm curious if anyone else has experience with this circuit, or swapping BJT's for Phototransistors in general.
(http://www.thetonegod.com/tech/thunder_alley/thunder_alley.jpg)
Here are the chips I'm using: http://www.everlight.com/file/productfile/el817.pdf (http://www.everlight.com/file/productfile/el817.pdf)
My opamp portion is working fine and the rest of the circuit is dead simple.
(http://gadgetfactory.in/store/image/data/EL817S%20pinout.gif)