Minimum_component_intercom

Published:2009/7/23 20:19:00 Author:Jessie | From:SeekIC

With switch S1 in the Talk position, the master-station speaker acts as the microphone. A T1 turns ratio of25 and an IC gain of 50 allows a maximum loop gain of 1250. RV provides a common-mode volume control. Switching S1 to Listen reverses the role of the master and remote speakers. Nationd Sem conductor Linear Appficatons Handbook 1991, p 200.



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