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Re: Ignitron

Subject: 
           Re: Ignitron
      Date: 
           Tue, 01 Apr 1997 21:39:38 -0800
      From: 
           Gary Weaver <gweaver-at-earthlink-dot-net>
        To: 
           Tesla List <tesla-at-pupman-dot-com>
References: 
           1


Tesla List wrote:
> 
> Subject:
>         Re: Dr. Resonance
>   Date:
>         Sat, 22 Mar 1997 03:40:28 -0700
>   From:
>         "DR.RESONANCE" <DR.RESONANCE-at-next-wave-dot-net>
>     To:
>         "Tesla List" <tesla-at-pupman-dot-com>
> 
> To: Barry Benson
> 
> The current price on type 7703 (type we used) is around $950.00.  We
> bought
> 3 last summer for an exploding wire project and that is the price on
> July
> 96.
> 
> Circuit is simple -- replace the sparkgap with an ignitron and use the
> ignitron to switch the energy through the cap to ground (one end
> grounded
> system).  Max firing on the 7703 is around 10 pps with a .05 MFD cap at
> 15
> KV peak.  Your idea would work with a water cooled ignitron but you are
> talking some serious money for one of those -- around $2500 I believe.
> 
> We used a 1 MEG 2 KW resistor in series to limit firing to around 1
> pulse
> every 2 seconds.
> 
> A full write-up of this circuit was printed in an early edition of the
> Tesla Coil Builders Assoc. newsletter.  Ask Harry for the reprint -- he
> will know the exact date.
> I would like to have a copy of this also.  I don't know Harry.


> DR.RESONANCE-at-next-wave-dot-net
> 
> ----------
> > From: Tesla List <tesla-at-pupman-dot-com>
> > To: tesla-at-poodle.pupman-dot-com
> > Subject: Dr. Resonance
> > Date: Saturday,March 22,1997 10:01 AM
> >
> > Subject:
> >         Dr. Resonance
> >   Date:
> >         Sat, 22 Mar 1997 10:22:00 -0500 (EST)
> >   From:
> >         Benson_Barry%PAX5-at-mr.nawcad.navy.mil
> >     To:
> >         tesla-at-pupman-dot-com
> >
> >
> > Hi Dr Resonance, All,
> > May I also get a copy (gif, jpeg??) of that ignitron
> > schematic? How much do ignitrons cost these
> > days?  If a back to back pair of these things
> > could be switched at 60 Hz then could they
> > be substituted for a synchronous rotary gap??
> > Barry
> >
> >  ----------

I am interested.  I have eight GL-7171's and one water cooled GL-5551A.
You 
say they can be used to replace the spark gap.  I have thought about
this but 
didn't know it would really work. I would like to see the circuit and
know 
about this. How can I get more information?

Gary Weaver