Re: super static gap / Jim Zimmerschied (fwd)

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---------- Forwarded message ----------
Date: Sun, 23 Sep 2007 20:57:18 -0700
From: James Zimmerschied <zimtesla@xxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: super static gap / Jim Zimmerschied (fwd)

Warren and all, the details were once on the hotstreamer site but may have
been removed. I can send more information if others are interested. The
static gap has a number of copper washers soldered to brass plates which
have a hole at least as large as the washer's ID. The plates are stacked
with foam rubber between them in a frame that guides and aligns them. An
adjustment knob and threaded rod arrangement is provided that moves the
plates closer together to space the gap. The arcing surface is the whole
washer surface. A vacuum blower draws air through the stack to quench the
gap and keep it cool. The one I am using was built by long time coiler Bob
Svangren and I use a variac to control the blower speed. The gap spacing
is easy to vary including while operating (using an insulated pole).

This type of static gap provides the best performance I have achieved for
a 30 mA coil including some sucker gaps and a number of cylinder gap
designs (some others like RSG's). I have tried it on a larger 120 mA coil
and it was able to function well without overheating though for large
coils I think a rotory is best.

Jim Zimmerschied 
  ----- Original Message ----- 
  From: Tesla list<mailto:tesla@xxxxxxxxxx> 
  To: tesla@xxxxxxxxxx<mailto:tesla@xxxxxxxxxx> 
  Sent: Thursday, September 20, 2007 7:05 AM
  Subject: super static gap / Jim Zimmerschied (fwd)



  ---------- Forwarded message ----------
  Date: Thu, 20 Sep 2007 00:15:22 -0700
  From: Warren R <wr3sd@xxxxxxxxxxxxx<mailto:wr3sd@xxxxxxxxxxxxx>>
  To: Tesla list <tesla@xxxxxxxxxx<mailto:tesla@xxxxxxxxxx>>
  Subject: super static gap / Jim Zimmerschied

  Hello all;

  While browsing for info re spark gaps on pupman.com, I came across a reference 
  to a spark gap developed by Bob Svangren; as mentioned by Jim Zimmerschied.
  (resent message ID = Rz7tiD.A.qZH.9pbtCB@poodle<mailto:Rz7tiD.A.qZH.9pbtCB@poodle> )

  I would very much like to hear from either of them re construction details ... 
  it consisted of stacked brass plates w/ brass washers soldered to plate 
  centers.

  Being in process of gathering parts & materials for a small (15.5 x 3.5 sec) 
  TC, putting together a SRSG looks a bit daunting. The "super static gap", OTOH, 
  looks to be a very good concept on as small a coil as I'm assembling.

  Thanks all for any further info :)

  Cordially,

  Warren Rath