I'm having trouble with this simple optotheremin: http://www.geocities.com/SoHo/Lofts/871 ... remin.html
Colin, other esteemed wizards of this site- I'm looking at you guys.
I'm fairly certain I've got all the connections right- as far as my understanding goes. I used a cap with the # 224 on it, so I'm assuming its .22 uf (then again, I'm retarded at math). Is this too high a capacitance value?
Also, I think that my opto resistor may be too high a value. It came from Radio Shack and there were no values printed on the package, but it is of a fairly large physical size (3 or 4 mm across). Think that's the problem?
Also- I have a number of transistors whose datasheets list them as "General Purpose" and "Switching". Am I correct to assume that those types can be used for this appilication?
I'm finishing up an APC right now. Hopefully I can post some shots of the finished build