[AMPS] Grid protection

Tom Rauch W8JI@contesting.com
Tue, 12 Sep 2000 18:39:19 -0400

> I recommended removing the CE shorted transistor and replacing it with a
> fuse resistor.   Shorted transistors can not limit current.  
> end 
> -  Rich..., 805.386.3734, www.vcnet.com/measures.  

The problems with that are:

1.) You recommended it as a blanket cure in QST

2.) A fuse resistor is a very slow acting device, even a regular fuse 
is unreliable

3.) If the grid resistor opens, the tube can go into current run away 
under some conditions

73, Tom W8JI

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