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Re: FIRST LIGHT!!!!!!!!!!!!!!! .......I have waited SOOO long to saythat:)



Hi Chris,


> I couldn't get the thing to tune at all, we added another 20' of primary.
> Bringing us to exactly 15 turns and will be trying for second light this
> evening.
> I have to rewire the lab this afternoon........romex, and fish-tape, and
> dikes....oh my.
>

This just doesn't sound right to me. 15 turns should be looking for a 0.0066uF
cap size with the 3" x 30" toroid. The 14" x 4" toroid at 15 turns should be
looking for a 0.0047uF cap. I wonder if your salt-water capacitance values are
correct? If your sure about them, you may want to try 0.005uF with the 14" x 4"
toroid and also the 0.007uF with the 3" x 30" for the hell of it and see
how she
runs. (BTW, I noticed a large variation with minute changes in primary tap
turns
up to 1uF per turn. It may take quite a bit of tuning time on the coil to
get it
"just right").

Stay safe - it's easy to forget steps when your spending a lot of time tuning.

Bart

>
> > >
> > > First Light :)
> > >
> > > 6-8" thin icky blue discharges to a grounded rod.....but it counts!
> > >
> > > Alright, here's the system.
> > >
> > > 15/30 NST
> > > 6X24"sec with turn 1 at 2" above pri.
> > > .005 .007 SW caps (we can use any combination)
> > >
> > > and either a 14X4" or a 30X3" toroid
> > >
> > > 1.4" tube at 1/4" spaceing, inner turn 10.5" on the primary
> > >
> > > single static, non blown gap (temporary)
> > >
> > > What can we do to make this better? 8" is great, but not exactly what
> >we're
> > > looking for here (5' would be nice) :)