Re: Waveguide TC

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>


Yeah, if you had transparent aluminum ! ! ! !




 > 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
 >  >
 >  >
 >  >
 >
 >
 >
 >
 >