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Intercom circuit, intercom schematic

2018-02-27 17:11  
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In this intercom schematic, the 8 ohm speakers is used as microphone and listening speaker.
The 10K potentiometer controls volume and the total gain can be set with de 5k R. Use a double switch with 2 positions so when one is used to talk and the other one to listen. The switch will be in the house.

Intercom circuit diagram


LM386 datasheet
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