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Hexum064

Member Since: October 8, 2010

Country: United States

  • This was the same instrument I first learned how to play piano on. Same key was chipped in fact...

  • I have a question. I ordered a few of these op amps and built the circuit according to the data sheet (and then verified it against the kit for it that is sold here, with slightly different cap values). I can't seem to get any audio out of it at all. I have a 2A 12V supply and have verified the voltage (And really at this stage, it doesn't matter since I'm just trying to get it to function). The main difference between the kit and my setup is I am not using the LM358 Op Amp to push it. Does this amp need to be driven by the LM358 first or should I be able to pump in a signal from my computer and output to standard headphones with the STA540 alone?

No public wish lists :(