2 to 4 wire audio converter


Posted on Mar 17, 2013

This audio converter circuit maintains 40 dB of isolation between the two halves of entry and exit of a four-line son, while allowing a line connecting two son. A balancing potentiometer, R, adjusts the gain of zero lC2to crossing the inlet to the outlet.



2 to 4 wire audio converter - image 1
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The adjustment is done in terms of work just after installation by inserting a 1 kHz tone at the entrance of four son and setting R to the minimum output signal 82-ohm dummy-load resistor is placed between two wire terminals.




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