Compressor Preamplifier

By the addition of a few extra components to an inexpensive, already assembled transistor audio amplifier, one can produce a very satisfactory but yet inexpensive audio compressor for use between almost any microphone and AM or SSB transmitter. he author has constructed many differ- ent types of audio compressors and has became convinced that under poor signal conditions and with transmitters lacking effective ale, that they are a definite advantage. The problem in constructing a compressor is...