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Developmental Germanium Power Transistors

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3 Author(s)
Roka, E.G. ; Formerly Research Center, Minneapolis-Honeywell Regulator Co., Hopkins, Minn., now with Delco Radio Div. of General Motors Co., Kokomo, Ind. ; Buck, R.E. ; Reiland, G.W.

A developmental germanium power transistor is described. The collector heat dissipation is 20 watts at room temperature when the transistor is properly mounted. The unit delivers a peak collector current in the order of 1 ampere and has a peak collector voltage of 60 volts. Problems concerning heat transfer and mounting are discussed. Electrical characteristics for 75 degrees F. and 175 degrees F. mounting base temperature are given.

Published in:

Proceedings of the IRE  (Volume:42 ,  Issue: 8 )