Hi, I've got a problem with my amplifier circuit. It's suppose to be a simple 1000x amplification circuit, using LM833. Instead of amplifying, my circuit is actually 'de-amplify'. By observation, when i put a signal of around 5 V, the output from the first amplifier is around 1V, and around few mV at the output of the second amplifier. I was trying to look at the datasheet for some clue, but fail to do so. I tried before with a LF356 circuit to amplify, and it works well. So, i can't find any reason why an op amp doesn't amplify. If someone could help, that would be greatly appreciated. >From wan wanzulhelmi@gmail.com _______________________________________________ http://www.piclist.com View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist