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[Amps] Glitch resistors

To: <amps@contesting.com>
Subject: [Amps] Glitch resistors
From: garyschafer@attbi.com (Gary Schafer)
Date: Wed, 06 Mar 2002 15:10:57 -0500
Richard wrote:

> >
> >On Mon, 4 Mar 2002 22:02:43 +0000 "Ian White, G3SEK" <G3SEK@ifwtech.com>
> >writes:
> >
> ><snip>
> >
> >Hi Ian,
> >
> >> Can we identify a specific range of US-made resistors, for the
> >> record?
> >
> >  Here are some real pulse rated types... not just ceramics that (may)
> >happen to survive the event.
> >
> >  Kanthal Globar (who acquired the Carborundum product line) makes a good
> >assortment -- their resistors are rated for both pulse voltage and
> >energy.  Take as look at the AS parts.
> >
> >  Ohmite has a new line that would be suitable for the application with a
> >pair in series -- look for the AY & AZ prefix
> >
> ?  To test a glitch resistor, short the HV+ to gnd.  [Before doing this
> test, install suitable glitch diodes across the meters and across the
> grid current and anode/plate current shunt resistors]  The glitch
> resistor should not exhibit physical damage or a change in R.  If the
> glitch resistor does pass the test, discard it, install two such
> resistors in series, and repeat the test.
>
> -  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
> www.vcnet.com/measures.
> end
>
>

Isn't the idea of a glitch resistor to act as a fuse ? Don't you want it to
open on a glitch?

73
Gary  K4FMX



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