Audio compressor
This is a dynamic audio compressor which output a constant audio level and can be used for transmitters. It uses a preamplifier with TDA 1054 produced by SGS-ATES. IC1a is a preamplifier stage with a total gain of 50 (1 + R5/R4). IC1b is connected as a amplifier stage with a 400x gain (1 + R11/R10).
The audio compressor power supply has 12V.
Here you got the audio compressor schematic:
Audio compressor circuit schematic
Related Schematics
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