Re: BEST Ballast for pole pig. (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 14 Aug 2007 22:46:42 +0000
From: david baehr <dfb25@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: BEST Ballast for pole pig. (fwd)


there are welders with  moveable cores, and NO taps.........

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      From:  "Tesla list" <tesla@xxxxxxxxxx>
      To:  tesla@xxxxxxxxxx
      Subject:  Re: BEST Ballast for pole pig. (fwd)
      Date:  Tue, 14 Aug 2007 10:15:26 -0600 (MDT)
      >
      >---------- Forwarded message ----------
      >Date: Tue, 14 Aug 2007 16:12:33 +0000
      >From: Jack King <ekklekktikk@xxxxxxxxxxx>
      >To: tesla@xxxxxxxxxx
      >Subject: Re: BEST Ballast for pole pig. (fwd)
      >
      >
      >Greetings Tyler and all,
      >
      >...All good advice on ballasts - and PLEASE follow Jim
      Mora's advice with
      >regards to safety - with 12-20 kv present, you become a
      sufficiently low
      >enough impedance for the amp or two of current at that
      voltage to vaporize
      >you!!!
      >
      >ANYWAY,
      >
      >...There's a better way to ballast your pig - a far better
      way (imho) - The
      >preferred device is a staple found in many neon sign
      production plants that
      >the neonist calls - rightly so a "choke" or slide choke.
      This device is a
      >simple variable inductor, with a large coil of wire -
      usually 3-4 layers of
      >#10 - #6 magnet wire  and a moveable core of iron
      laminations (about 2" - 4"
      >square and 15"-18" long). This is a brilliant way to both
      limit current -
      >and allow you to VARY it in a stepless fashion - the other
      methods (like the
      >spool of #12 or #10 wire leaves you no practical way to
      "adjust" current,
      >and the old buzzbox welder is "stepped" as the coin contacts
      are switched.
      >
      >I have sold a number of these to various coilers with good
      results - They
      >sell for between $250 $500 depending on kva, etc, You can
      alos check with
      >local neon sign shops - and if you can speak with the
      "glassroom" see if
      >they have a spare bombarder choke.
      >
      >Holler if I can help - I do have a few floating around at
      all times
      >
      >Jack King 801-604-5136
      >
      >
      >
      >
      > >From: "Tesla list" <tesla@xxxxxxxxxx>
      > >To: tesla@xxxxxxxxxx
      > >Subject: Re: Ballast for pole pig. (fwd)
      > >Date: Tue, 14 Aug 2007 06:45:11 -0600 (MDT)
      > >
      > >
      > >---------- Forwarded message ----------
      > >Date: Tue, 14 Aug 2007 03:15:55 -0700 (PDT)
      > >From: Yurtle Turtle <yurtle_t@xxxxxxxxx>
      > >To: Tesla list <tesla@xxxxxxxxxx>
      > >Subject: Re: Ballast for pole pig. (fwd)
      > >
      > >A Hamfest is a good place to get parts.
      > >
      > >http://www.arrl.org/hamfests.html
      > >
      > >Adam
      > >
      > >--- Tesla list <tesla@xxxxxxxxxx> wrote:
      > >
      > > >
      > > > ---------- Forwarded message ----------
      > > > Date: Mon, 13 Aug 2007 16:25:34 -0700 (PDT)
      > > > From: Tyler Pauly <rpggod714@xxxxxxxxx>
      > > > To: Tesla list <tesla@xxxxxxxxxx>
      > > > Subject: Re: Ballast for pole pig.
      > > >
      > > > Well, it sounds like an inductive ballast is the way
      > > > to go.  I will check on available arc welders in my
      > > > area.  Is there a formula for one of the wire coil
      > > > ballasts people are mentioning?  A formula to
      > > > calculate amps through, how many windings to use,
      > > > what
      > > > purchase a 0-240/280VAC variac that can take 30-40
      > > > amps?  I have a standard one I use for NST's, but
      > > > it's
      > > > just a 0-130 (I believe).  Finally, where is
      > > > Teslafest
      > > > '07? Something like that would definitely help,
      > > > because I'm certainly no expert. Thanks again!
      > > >
      > > > Tyler
      > > >
      > > >
      > > >
      > > >
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      > >
      > >
      > >
      >>______________________________________________________________________________
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      >
      >_________________________________________________________________
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      >


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