Audio amplifier using LM324

190

02:18:01

Easy to build and simple design. 

published 6 years ago

hurz

6 years ago

this design will cause problems when the lower right opamp part does not have exact same open loop gain. set it to e.g. 111 instead of 100k it will sound horrible. You have to spend an inverting amplifier topology twi resistors more and not just hope on equal open loop gain and swap input terminals thats too easy.

Abulghafoor

5 years ago

Thank you

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