[TenTec] Hercules II Bias control transistors

Ken Brown ken.d.brown at hawaiiantel.net
Sun Jan 21 01:38:22 EST 2007


What kind of transistors are Q1, Q2, Q3 and Q4 on the main 420 Wiring 
Diagram? These are used to control the bias to the four pairs of PA 
transistors. They connect to connectors 23, 24, 25 & 26 on the Bias 
Board schematic. They look similar to Q1, the fan driver transistor on 
that board, though they must be NPN. Q1 on the bias board is PNP, a MJE370.

DE N6KB



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