Thanks in advance!
I have a circuit board with a built in "buzzer" but its more a chime.
There a two posts, + and -, on the back of the board that pulses with 2 volts when the chime chimes.
How could I hook an amplified speaker into this??
I need to make the chime or buzzer MUCH louder. I have a power outlet very near the board figuring that external power would be neccessary
March 22, 2017
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