Re: Waveguide TC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jolyon Vater Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>

Is there a possible use for a waveguide -filled with a suitable gas at low
pressure- as a discharge lamp like a neon or fluorescent tube?

Jolyon

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, December 14, 2002 3:51 AM
Subject: Re: Waveguide TC


 > Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<dhmccauley-at-spacecatlighting-dot-com>
 >
 >  >  > There are very high voltage potentials inside waveguide and
waveguide
 > arcs
 >  >  > are probably the wicked-est arcs I've ever witnessed.  This is the
 > reason
 >  >  > high power
 >  >  > waveguides are usually pumped full of pressurized air or nitrogen.
 > I've
 >  >  > worked on transmitters putting out over 1.5 MW of power at S-Band
 > (3-3.5
 >  >  > GHz) and you should
 >  >  > see what these arcs do to the internal portions of the waveguide.
 >  >  >
 >  >  > Dan
 >  >
 >  > Of course, the damage depends on how much average power is available.
 >  > Note that every high-power radar system of which I am aware has a
 >  > "waveguide arc detector" to protect the system from damage from a
 >  > continuing arc.
 >
 >  > Ed
 >
 >
 > Yes, but waveguide arc detectors are almost always placed close to the
tube
 > itself.  Any waveguide arc downstream especially through long-length
 > flexguide
 > can be subjected to arcs of long duration causing lots of damage.  In this
 > case, the only way to detect an arc is through detected reflected power
 > going back
 > to the tube or wherever the reverse power couplers are.
 >
 > Dan
 >
 >
 >