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 audio limiter circuit is easy to build, works with BA741 8pins or 4pins so pay attention and uses a symmetrical power supply. When the audio input level is between 20mV and 20V the output will be ...

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 ...