Frank Pacquiao

user Test Engineer

city ISI


  • Audio-controlled switch - 1

  • Created: Jul 20, 2017

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Description

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Summary

The audio-controlled switch combines a pair of LMX321 op amps, two 2N2222 general-purpose transistors, a Power MOSFET, and a few support components to produce a circuit that can be used to turn on a tape recorder, a transmitter, or just about anything using sound.

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