Build a Voice Scrambler or Descrambler Circuit Diagram

This Voice Scrambler or De-scrambler Circuit Diagram uses an NE602 as an inversion mixer. U2 is set to run at about 2.5 to 3.5 kHz. U3 drives a loudspeaker. Because speech inversion scrambling is its own inverse, the circuit will also descramble . 

Voice Scrambler or Descrambler Circuit Diagram

Voice Scrambler or Descrambler Circuit Diagram

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