Re: Terry Gap vs. TCBOR...

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

Original poster: "Binny" <binny-at-midmaine-dot-com> 

Hi can anyone out there point me in the right direction as how to set up an
antenna for measuring TC waveforms for my TEK "O" scope?A circuit diagram
would be of great help.THANKS in advance and great job moderating the list
Terry.
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, February 29, 2004 1:13 AM
Subject: Re: Terry Gap vs. TCBOR...


 > Original poster: Brett Miller <brmtesla2-at-yahoo-dot-com>
 >
 >
 > --- Tesla list <tesla-at-pupman-dot-com> wrote:
 >  > Original poster: Terry Fritz
 >  > <teslalist-at-twfpowerelectronics-dot-com>
 >  >
 >  > Hi Brett,
 >  >
 >  > This will be very interesting!!  I have long thought
 >  > that the multigaps
 >  > tends to burn off less power so the coils are more
 >  > efficient.  They also
 >  > quench better.  Looking forward to what your
 >  > experiments find!
 >  >
 >  > Cheers,
 >  >
 >  >          Terry
 >
 > Great!  I'm glad to know you are interested.  The glue
 > was nice and cured by this afternoon, so I did some
 > preliminary test firings.  It wouldn't fire tapped at
 > 20 pipes, so I had to reduce it by 4 or 5 and it fired
 > at an 80% variac setting or so.  Amazing performance
 > with what looked like 4 footers or larger leaping out
 > into free space.
 >
 > I plan on writing a text file with detailed specs,
 > exact variac settings, and even VA comparisons if I
 > can borrow an amp clamp from one of the hams around
 > here.  And I still have yet to drag out the TEK and
 > set up an antenna.  I will certainly keep you and Luke
 > (and whoever else is interested) posted.  Plus I plan
 > on making gap measurements available as well.  Someone
 > remind me, if I forget that.  I'll try to find time to
 > make a section on my hot-streamer page documenting
 > this experiment.
 >
 > -Brett
 >
 >
 >  >
 >  >
 >  > At 07:54 PM 2/27/2004, you wrote:
 >  > >Luke (and Terry might be interested too),
 >  > >
 >  > >I have started the restoration of the Fritz linear
 >  > >static gap.  I mixed up some T-88 aircraft grade
 >  > epoxy
 >  > >(good stuff I might add) and set up the cu pipes on
 >  > a
 >  > >nice 1/2" thick Lexan base I pilferred from my
 >  > >plastics crate.  Tomorrow it should be pretty well
 >  > >cured and I can start firing up and performing
 >  > tests.
 >  > >
 >  > >
 >  > >I'll soon be providing pictures of both the gaps as
 >  > >well as scope waveforms of quenching for the
 >  > >respective units.
 >  > >
 >  > >Just remember, the diameter of the pipes is much
 >  > >greater in the TCBOR gap, so heat sinking/cooling
 >  > will
 >  > >be naturally better in the TCBOR.  This is
 >  > definately
 >  > >something to consider when analysing the results.
 >  > >This test will definately not be controlled, nor
 >  > will
 >  > >it be double blind.  Nevertheless, I think some
 >  > >tentative conclusions may not be life threatening.
 >  > >
 >  > >I must also not forget to take measurements of each
 >  > >gap and provide total gap spacing for each gap unit
 >  > >tested.  I used two index cards stacked to space
 >  > the
 >  > >pipes in the Fritz gap.  Those will be easy to
 >  > measure
 >  > >with a caliper.  I can use a feeler gauge for the
 >  > >TCBOR.....something I should have done a long time
 >  > >ago.
 >  > >
 >  > >I hope a few people will take an interest in this
 >  > >little project.  I know Luke is interested (plus
 >  > me),
 >  > >so that makes it worth doing right there.  What
 >  > we're
 >  > >really wanting to know here is whether or not
 >  > >distributing a spark over many gaps for greater
 >  > >quenching is desirable over using few gaps to
 >  > minimize
 >  > >loss?  Where is the balance?  Is this a sensitive
 >  > >parameter that must be matched to specific systems?
 >  > >If we're lucky we might learn more about whether or
 >  > >not 1st notch quenching is the "holy grail" of
 >  > spark
 >  > >gap design (see Richee Burnett's page).
 >  > >
 >  > >-Brett
 >  >
 >  >
 >
 >
 >
 >