Re: Help ID'ing a possible capacitor

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

Original poster: "Paul Benham by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Paulb-at-woodanddouglas.co.uk>

We use these at work.  They are a cavity resonator.  Ours have been
modified so that they act as a notch filter which can be tuned in
frequency.

Cheers,

Paul.

Tesla list wrote:
> 
> Original poster: "Steve by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<steve-at-g8cyerichmond.freeserve.co.uk>
> 
> This looks awfully like a stub filter for VHF use, used to notch out a
> specific frequency, commonly used in radio repeaters.
> 
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Friday, February 22, 2002 3:18 PM
> Subject: Re: Help ID'ing a possible capacitor
> 
> > Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <rheidlebaugh-at-zialink-dot-com>
> >
> > Just a wild guess: It looks like a band pass filter used on radio
> > transmitters in the 50's. Measure the inside dimensions to estimate the
> > frequency used. After you have a starting point you can test with a signal
> > generator.
> >    Robert  H
> >
> > > From: "Tesla list" <tesla-at-pupman-dot-com>
> > > Date: Thu, 21 Feb 2002 21:54:43 -0700
> > > To: tesla-at-pupman-dot-com
> > > Subject: Help ID'ing a possible capacitor
> > > Resent-From: tesla-at-pupman-dot-com
> > > Resent-Date: Thu, 21 Feb 2002 22:09:50 -0700
> > >
> > > Original poster: "jesse hampton by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> > > <zetoyoc-at-yahoo-dot-com>
> > >
> > > Hello,
> > >
> > > I finally got caught up enough on my list reading to
> > > ask my question. In looking for possible parts to use
> > > in tesla duty I came across an old what we think is a
> > > capacitor made mostly of copper. Now I am far from an
> > > expert on these things and was hopping a few kind
> > > soals would look at a few pictures of this aparatus
> > > and shed some light on it usefullness. the pictures
> > > can be found here.
> > > http://www.geocities-dot-com/zetoyoc/What_is_it.html
> > >
> > > if there is more information you might need please let
> > > me know ill get it if i can.
> > >
> > > Thank you,
> > >
> > > Jesse Hampton
> > >
> > >
> > >
> >
> >
> >
> >
> 
> *****************************************************************
> This email has been checked by the altohiway e-Sweeper Service
> *****************************************************************