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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
> 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!
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
> 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
> >(good stuff I might add) and set up the cu pipes on
> >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
> >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
> >be naturally better in the TCBOR. This is
> >something to consider when analysing the results.
> >This test will definately not be controlled, nor
> >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
> >pipes in the Fritz gap. Those will be easy to
> >with a caliper. I can use a feeler gauge for the
> >TCBOR.....something I should have done a long time
> >I hope a few people will take an interest in this
> >little project. I know Luke is interested (plus
> >so that makes it worth doing right there. What
> >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
> >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
> >gap design (see Richee Burnett's page).