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LM386 electronic intercom circuit

This electronic schematic circuit is a very simple two way intercom circuit based on a LM386 audio amplifier circuit . The intercom electronic schematic use two separate LM386 circuits one amplifier for each station . The LM386 based intercom electronic circuit operate as two separate entities with switches at either station controlling which will transmit or receive . The value of the capacitors from the electronic schematic are in microfarads .For this intercom circuit you can use a 8 ohms speaker , one for each station . The intercom circuit require a 9 volts dc power supply . With the C7 and C8 capacitors connected in the circuit the amplifiers provide a high gain around 200 and without these two capacitors connected in the circuit , the gain drop s around 20 .

LM386 electronic intercom circuit schematic

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