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RE: need help tuning my coil:
Original poster: Pat Masterson <bat-at-grumman-dot-com>
Mark, you're right, I should do better than 5 inchs. Just cant figure
out whats wrong right now... -pat
On Mon, 19 Apr 2004, Tesla list wrote:
>Original poster: "Mark W. Stolz" <mark_w_stolz-at-hotmail-dot-com>
>I'm thinking you should probably be tapped at turn 6 or maybe 8.
>Considering the smoothness of the toroids John Freau supplies, a breakout
>point might be needed during the initial tuning.
>I have a similiar coil powered by a 7.5/30 NST that produces 12", so you
>can easily do more than 5".
>>From: "Tesla list" <tesla-at-pupman-dot-com>
>>Original poster: Pat Masterson <bat-at-grumman-dot-com>
>> I need some suggestions on the poor performance of my first coil in
>>20 years. The best I'm getting is 5 inch weak streamers, but only when
>>tapped at turn 2 of my primary. Here are the coil's components:
>>-primary is quarter inch refrigerator tubing space a quarter inch. I have
>>about 10 turns on the board.
>>-cap is 5 geek 150 NFs in series, making 30 NF.
>>-HV is a 7500v/60 ma NST. (have RF chokes on both sides)
>>-single static gap with a 4 inch fan blowing hard on it. A larger gap
>>(around .06 in)
>>seems to give best performance.
>>-secondary is a 2.375 PVC with 1300 turns of 28 ga wire, about 18 inches
>>-Topload is a Freau 6 inch aluminum toroid.
>> I have adjusted the caps from 25 NF up to 33 NF and didnt see much
>>When I move my tap out from turn 2 I lose the streamers. Any ideas whats
>>wrong with my