A Transistorized 150-MC FM Receiver

A completely transistorized experimental 150-mc FM communication receiver utilizing diffused base transistors is described. It is a crystal controlled double conversion receiver designed for 60-kc adjacent channel spacing at any channel frequency between 152 and 174 mc. Performance curves for the receiver are provided. For experimental evaluation, the experimental receiver is used with a vacuum tube transmitter to provide a complete transceiver unit.