wireless headphones transmitter

Posted on Feb 6, 2014

This wireless headphones transmitter assures a affection accession over 2 meters. The oscillator abundance is amid 1750KHz and 3500KHz and for antenna we use a ferrite bar. IC1 amplifies the audio arresting and TC1 is a buffer. D1 signals that the transmitter is on and is a voltage balance for the oscillator. L1 is a toroidal amount T50-2 with 80

wireless headphones transmitter
Click here to download the full size of the above Circuit.

turns, 0. 2mm G. L2 requires a 10-20cm ferrite bar, L2a has 3 turns, 0. 6mm G coiled at arena end of L2b wich has 30 turns, 0. 5mm G.

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