This sophisticated audio compressor was obtained in a documentation from the 70s. The transistors are of general use, except the FET which can be the BF245 and the voltage regulator of the source which can be a BD135.
This sophisticated audio compressor was obtained in a documentation from the 70s. The transistors are of general use, except the FET which can be the BF245 and the voltage regulator of the source which can be a BD135.