comparator circuit?

Question

I am having some trouble with my LM393 comparator circuit. I can use it to channel the power (i.e. use the V+ and input/output pins), but the ground pin does not seem to be working. I have tried my circuit with several other 393's to no avail. does anyone know of a simple circuit I could run through it to see where I went wrong? Let me know if I can be more helpful with my info. Thanks!

Answer 1

Check the App notes from National

http://www.national.com/mpf/LM/LM393.html#Application%20Notes