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A High Power Linear Amplifier for Single Sideband Applications

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1 Author(s)
Gunter, Frank B. ; Westinghouse Electric Corporation, Electronics Div., Baltimore, Maryland, USA

The design of a high power linear amplifier intended for use as a power amplifier for Single Sideband transmitters is discussed. The availability of new components and a new concept of pi type tank circuits permit avoiding difficulties experienced in previous designs. This new linear amplifier provides up to 30 KW output in the frequency spectrum from 4.0 to 26.5 MC with low distortion products on two tone tests. This performance is accomplished with a material reduction not only in the complexity of the apparatus but also with a reduction of complete installed size to a length of 8 ft. Air cooled components utilizing high velocity, low volume air circulation enables installation with minimum difficulty at altitudes up to 8000 feet. A discussion of the electrical and mechanical characteristics will be presented with emphasis on the simplified tuning system which allows rapid change of frequency.

Published in:

Communications Systems, IRE Transactions on  (Volume:4 ,  Issue: 2 )