Published:2009/6/16 22:59:00 Author:May | From:SeekIC
An intercom using dual-modular wall jacks is shown in this circuit. If the wires are available in the home telephone cable, this system can be installed with little trouble.
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http://www.seekic.com/circuit_diagram/Electrical_Equipment_Circuit/Telephone-Related_Circuit/TELEPHONE_INTERCOM.html
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