Re: [TCML] Chokes and Terry filters

["DC Cox" <resonance@xxxxxxxxxxxx>]

They stretch a rapid transient's waveform across the time (x) axis.  It
takes time to build a magnetic field which slows down the field build time
and reduces the really bad VHF transients.  Some people say they are not
necessary, but for over 40 years I used them alone and never lost an nst.  I
would certainly advise using them in conjunction with Terry's filter which
contains additional and more modern components to help spoil the Q of the
circuit.

Dr. Resonance




On Tue, Jun 17, 2008 at 1:35 PM, <neal@xxxxxxxxxxxxxxxx> wrote:

> If I can back up a bit here; what is the purpose of air core chokes? Doc,
> if I
> remember correctly, I thought I saw one on a jacob's ladder you had in your
> shop a couple of years ago. Just wondering what they do, thanks,
>
> Neal.
>
> Quoting Mddeming@xxxxxxx:
>
> >
> > In a message dated 6/16/08 8:37:59 P.M. Eastern Daylight Time,
> > resonance@xxxxxxxxxxxx writes:
> >
> > In over  50 years of which 40 of them I just used an air core choke, I've
> > never lost  a NST.  That speaks for itself.
> >
> > Dr.  Resonance
> >
> >
> >
> >
> > Hi Doc,
> >
> > Reminds me of the title anecdote in Alexander King's book, "May  This
> House
> > Be Safe From Tigers". I paraphrase for brevity:
> >
> > A. King: For three years you've been saying 'May this house be  safe from
> > tigers' whenever you leave my home. Why?
> >
> > N. Prelick: Well -- been bothered by any tigers lately?
> > ;^))
> > Matt D.
>
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