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An Investigation of the Ultimate Performance of Space-Charge Deflection Tubes

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1 Author(s)
Wallmark, J.T. ; RCA Laboratories, Princeton, N.J.; formerly with Royal Institute of Technology, Stockholm, Sweden

The ultimate performance of space-charge deflection tubes is investigated in several respects and a comparison is made with pentodes and multiplier tubes using essentially the same tube structure. Noise may be considerably lower than for conventional multiplier tubes and almost equal to that of pentodes. The transconductance-to-current ratio may surpass the value for conventional tubes by a factor of 2-10. The high-frequency behavior is inferior to that of pentodes. The stability of transconductance may be higher and distortion lower than for conventional multiplier tubes and even pentodes. The current drain may be lower than that of a pentode.

Published in:

Proceedings of the IRE  (Volume:42 ,  Issue: 9 )