A 3,000-watt audio power amplifier

A 3,000-watt audio power amplifier has been developed using the Bereskin power amplifier circuit described at the 1954 IRE National Convention and in the March-April 1954 issue of the IRE TRANSACTIONS ON AUDIO. Solutions were found for some interesting problems that arose in this connection. A unit capable of delivering more than 3,000 watts with less than 2 per cent distortion over a 400-6,000 cycle frequency range was developed. The design procedure and test data on the final unit will be discussed.