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AUDIO AMP + 3KHz FILTER

This circuit is the audio amp section for a complete optical transmitter. The increased circuit and filters the voice audio signals from an electret microphone. The circuit is described in detail in Section receiver Dave Johnson’s Handbook of Optical Communications Through the air. <cut>

Click on Drawing Below to view PDF version of Schematic

Circuit Optical through the Air Transmitter designed by Dave Johnson, P.E. (June 4, 2000)

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