This is a dynamic audio compressor which outputs a constant audio level and can be used for FM transmitters too. It uses a preamplifier with TDA 1054 produced by SGS-ATES. IC1a is a preamplifier stage ...

This is an audio compressor/AGC (automatic gain control) with an astonishing 75db input voltage range. A P-Channel JFET is used as a variable resistance element that is applied as a variable ...

Jackson Audio has unveiled the Hour Glass, a tricked-out compressor pedal that was inspired by classic OTA analogue units from Ross, but doubles up on the circuits for added flexibility – and, quite ...

[Alan’s] friend came to him with a problem. He loved listening to his scanner, but hated the volume differences between stations. Some transmitters would be very low volume, others would nearly blow ...