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COIL TEST!//QUESTION??
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From: Zuma [SMTP:mwise-at-ns.sosis-dot-com]
Sent: Friday, February 06, 1998 11:30 AM
To: Tesla List
Subject: Re: COIL TEST!//QUESTION??
Tesla List wrote:
>
> ----------
> From: Zuma [SMTP:mwise-at-ns.sosis-dot-com]
> Sent: Tuesday, February 03, 1998 11:38 PM
> To: tesla-at-pupman-dot-com
> Subject: COIL TEST!
>
> I tested my new 6 1/4" coil tonight and was kind of amazed at what I got
> out of it. I tried a different setup to test this coil. First of all
> I only used a 7.5kv-at-60ma neon to test it with. O.K. this is what I did,
> I am sure someone has tried this before, I set my coil up in kind of
> like a magnifyer setup. I took the normal ground wire from the secondary
> and instead of hooking it up to ground, I hooked it up to one of my 4"
> secondaries and place it about 12" from my coil. When I fired it up
> I only used one gap set at .030" to adjust coupling and toroid height.
> It started out at first just as a spec of purple on the end of the extra
> secondary's top wire (I did not use a toroid on the extra secondary just
> the bare wire). Once I had the secondary height adjusted the spec grew
> to a little bit more purple and more corona. Then I adjusted the toroid
> height to get the best output, by this time I was getting 1"-2" sparks
> off of the extra secondary and a little bit of corona off of my coils
> toroid. I then stepped the gap up to 2 series gaps, I then got 1"-2"
> sparks off of the toroid and about 3" sparks off of the extra coil.
> Then I made a jump from 2 gaps to 6 gaps which was a little to much for
> the small neon, it started cutting out. So I then cut the gap back to 5
> series gaps and I was getting a solid 12" arc from the toroid to the
> extra coil. I was surprised at this output because I was running such a
> small neon. Also I might add that the coil wasn't at full potential.
> I was using salt water/aluminum tape caps. But that isn't the half of
> it, I am only running 5% of the capacitance the neon can handle.
> The measured value of the caps I was using was .001uf the neon can
> handle about .02uf. I am hoping that with a poly cap at .02uf I can
> 'blast' my other coil out of the water. My old coil used a 15kv-at-30ma
> and I obtained a max of 19" of spark. What does everyone think?
> You think I can get at least 2' off of this coil.
>
> I originally didn't make this coil for a 7.5kv neon, I made it for my
> modified 12kv neon running about 80ma using a .016 poly cap.
>
> Chris