[Amps] Grid fuses (was: Life and gain of 3-500Z)

Chris Howard chris at yipyap.com
Fri Jul 21 11:09:38 EDT 2006


On Fri, 2006-07-21 at 07:28, Tom W8JI wrote:

> 2.) During an arc or anode to grid fault, the tube has 
> plasma or significant leakage path inside. Opening the grid 
> does not instantly make that plasma or path open. This is 
> especially true when a very poor fuse like a small resistor 
> is used to interrupt a few kV of voltage.

sorry, I said I was going to quit.  
But I really am learning from this exchange, so if you don't mind,
one more question.

Once there's an arc going, opening the circuit on the grid-to-ground
side would have the same effect as opening the circuit on the
HV-to-plate side... no?






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