The circuit provides a simple illustration of a door phone intercom system having a two-way communication using the features of LM386 amplifier. Intercom – short for intercommunication, is an ...
My condo has an analog intercom/buzzer system. When someone buzzes up, it rings the line in my unit. It it hardwired into the condo - I have no landline service. I can then pick up the call and press ...
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