LPB Model 25C AM Broadcast Transmitter Manual
Complete instruction manual for the LPB 25C 20-watt AM broadcast transmitter. Includes circuit description, specifications, operating instructions, troubleshooting guidelines, and technical details for carrier-current and limited area AM broadcasting applications. Features push-pull tube amplifiers with Class C RF power amplifier using a 7984 tetrode, pi-network output, and modulation transformer design. Contains final inspection report with performance data.
