I need to amplify the sound from a 9 volt dc audible probe circuit.
The probe provides a very low musical melody sound that cannot be heard.
However, another audible probe circuit that only beeps, is audible.
At the musical probe output, the voltage is very low, around micro volts.
The audible probe outputs slightly higher voltage.
Steve
Try this one.
Michael
Simplest might be an LM386 amplifier IC.
Ed
Simpler still is the TDA7052, its a BTL amp in the same DIL-8 package - the one with the "A" suffix has DC volume control.
he
Thanks to everyone for their views.
Been bsuy lately .. will try and inform soon.
Steve.
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