DIY: A Simple Two-Way Intercom

By S.C. Dwivedi

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If you have to frequently get up to talk to someone in your place, this intercom can save you the trouble. You can just switch it on from both sides to communicate. It can also come in handy if you have someone observing isolation at home due to Corona. Block diagram of the intercom is shown in Fig. 1.

Block diagram for Two-Way Intercom
Fig. 1: Block diagram for Two-Way Intercom

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