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

To: <dezrat@copper.net>
Subject: Re: [Amps] Grid fuses (was: Life and gain of 3-500Z)
From: "Tom W8JI" <w8ji@w8ji.com>
Date: Fri, 21 Jul 2006 14:23:26 -0400
List-post: <mailto:amps@contesting.com>
I think we're talking about two different problems here:

1. Excessive grid current, without internal arcing.
2. Internal arcing.

A fuse, resistor or solid state protective circuit is not 
going to be
much good against #2, but should help #1, I would think. Am 
I wrong?>>

 The threshold between normal operation and damage is as 
little as 1:2 or 1:3 in many cases.

A fuse won't reliably last if rated too low and it isn't 
fast enough or reliable enough if rated higher.
A resistor would be laughable if it weren't such a very 
damaging suggestion.

73 Tom 


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