[Amps] 3-500Z glitch resistor

[sccook1 at cox.net]

If the concern is FOD from a glass fuse, I wonder if the ceramic type would be more robust with respect to shattering.

One could always place a piece of heat shrink on the body of the fuse for added protection.   Some very large amps use the lowly glass fuse to good effect and they are available in a multiplicity of current raitings.

Seems like a nice way to have a plug 'n play fix when a paracitic or some other mean thing happens.

-S


---- David Cutter <d.cutter at ntlworld.com> wrote: 
> Glass tubes are not so easy to find: some plastics might do just as well 
> filled with sand.
> 
> David
> G3UNA
> 
> ----- Original Message ----- 
> From: "Roger (K8RI)" <sub1 at rogerhalstead.com>
> To: "Peter Voelpel" <df3kv at t-online.de>
> Cc: <amps at contesting.com>
> Sent: Tuesday, September 16, 2008 10:27 PM
> Subject: Re: [Amps] 3-500Z glitch resistor
> 
> 
> > Peter Voelpel wrote:
> >> Put the wire into a glass tube and fill that with sand
> >>
> >
> > Now that makes sense. Basically a HV fuse is just a tube with a wire
> > filled with sand.
> > If glass just make the diameter large enough to handle the pressure.
> >
> > 73
> >
> > Roger (K8RI)
> >> 73
> >> Peter
> >>
> >> -----Original Message-----
> >> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
> >> Behalf Of Roger (K8RI)
> >> Sent: Dienstag, 16. September 2008 20:10
> >> To: Kevin LaHaie
> >> Cc: amps at contesting.com
> >> Subject: Re: [Amps] 3-500Z glitch resistor
> >>
> >> Kevin LaHaie wrote:
> >>
> >>> Harbach recommends a single strand of #32 or 36 wire create a fusible
> >>>
> >>>
> >>
> >> I really don't like the thought of a piece of wire in there long enough
> >> to extinguish the arc, or to coat things with vaporized copper. OTOH
> >> using regular fuses is inviting disaster. Most are rated no more than
> >> 250 v.  HV fuses are difficult to find but about the only safe way to go.
> >>
> >> 73
> >>
> >> Roger (K8RI)
> >>
> >>> link, in series with the current limiting resistor.  Makes sense -
> >>> inexpensive with big potential returns!  A recommended source of this
> >>> wire being a single strand from a computer disk drive ribbon cable - we
> >>> all have those lying around!
> >>>
> >>> 73 Kevin K7ZS
> >>>
> >>> sccook1 at cox.net wrote:
> >>>
> >>>
> >>>> Team,
> >>>>
> >>>> How about a resistor in series with fuse.
> >>>>
> >>>> -S
> >>>>
> >>>>
> >>>>
> >>>>
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> >>>
> >>>
> >>>
> >>
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