The "glitch resistor" is supposed to absorb the horrendous over-current and
the HVPS relay/circuit breaker trips..unless the glitch is momentary in such
cases you will never know there was even a "glitch"! At least that`s how my
amps are designed to work. 73 all around, Jim.
----- Original Message -----
From: Gary Schafer <garyschafer@attbi.com>
To: Richard <2@mail.vcnet.com>
Cc: Radio WC6W <wc6w@juno.com>; AMPS <Amps@contesting.com>
Sent: Wednesday, March 06, 2002 12:10 PM
Subject: Re: [Amps] Glitch resistors
>
>
> 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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