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Infra Red Audio Link

 
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PostPosted: Thu Feb 09, 2006 10:30 am    Post subject: Infra Red Audio Link Reply with quote

Use infra red to transmit audio.

"In his circuit Milan has created a basic Infra Red transmitter and receiver. The transmitter comprises a single amplifying stage driving two series connected IR LEDS. The input source is connected to J1. Please note that the device will pass a small DC current through it and also directly bias the transistor. A suitable device is therefore a high output crystal microphone. These can produce high output voltages up to 1 Volt but this will be reduced by the transistors low input impedance."

http://www.i-hacked.com/content/view/30/44/

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