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Transmitting Sound on a Light Beam

Build a sound to light converter.

Assemble a simple circuit which amplifies an audio signal, then feeds it through a high intensity LED. The result is a light signal matching the original sound wave.

Theory / Materials / Procedure 1 / Procedure 2


This experiment is divided into two parts:

  • Part 1
    Build a transporter lens.
  • Part 2
    Assemble the sound to light transmitter circuit.

Free Experiment 2-06


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