Simple Mic Compressor using 3 Transistors for HF rigs

Mic Compressor using 3 Transistors is a simple, yet effective, compressor circuit that can be used to improve the dynamic range of a microphone signal. The circuit is made up of three transistors, and it is powered by a 12-volt supply. It was designed by Eko Pramono, a ham radio operator from Indonesia. The circuit …