Re: design presentation, and 1 question
In a message dated 12/1/98 11:05:04 PM Pacific Standard Time, tesla-at-pupman-dot-com
<< Original Poster: Finn Hammer <f-hammer-at-post5.tele.dk>
The question is, will a neon, 8000 v -at- 50 mA be powerfull enough to
produce sparks on this coil:
I have decided what sort of coil to make. I want one that will have
scope for future upgrading of the tank, so it starts out like this:
Tank: 8000V 50 mA, 0.02 µF
Secondary: 6" by 24" 22 gauge (as per quick)
Primary: 18 turns (tapped btwn. 10&11) 1/4" cu. tube, spaced 1/4", 15
degrees bank. (as described by Gary Weaver, and Quick)
Top terminal: Toroid 6" by 12.5"
so that the resonant frequency at 160khz can be met.
I used Tesla coil CAD, and Wintesla to design this coil.
Gap will be "quick"© :-) axial blown radial gaps and cap stacked polye.
- snip -
Looks like a good design, very similar to my 6" coil. I would suggest to make
the primary flat, there is nothing to be gained by going with the saucer
shaped design. I have done it both ways. I would also suggest that you use
3/8" copper tubing with 3/8" spacing. A coil of this size is capable of
producing a lot of power with the right power supply. 1/4" tubing would be
fine with the transformer that you are starting with - but I also started with
only neon sign transformer power and ended up with a 5kva pole transformer.
Projects like this just have a tendency to expand and grow over the years.
The 3/8" tubing would give you room to grow. The 8,000 volt 50 ma transformer
is also a place to start. Yes, the coil should work ok with that for a start.
Will it produce longer sparks with a 10 kv or 12 kv or 15 kv power supply, of