Re: Question

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi,

The secondary is fine.  You can adjust the tap point on the primary coil to 
cover a giant tuning range and adjust the coil that way.  It would be 
difficult to find a secondary that could not be tuned in easily by 
adjusting the tap point on the primary.

When you make the primary, you do want to be sure it has plenty of turns 
for tuning.  That is when you need to think a little about how many primary 
turns and such you will need for tuning.

Cheers,

         Terry


At 07:23 AM 10/2/2003, you wrote:
>Hi Everyone,
>I am hoping someone will provide some insight to a beginner.  I purchased 
>a secondary coil off of Ebay and am planning on building my first TC. I 
>have been reading postings and studying everything I can find.  At this 
>point I just need some clarification. I think I have done this backwards 
>by buying a premade secondary. If I am correct in my thinking, since the 
>secondary coil is a fixed factor ( 4.5 dia. 22.5 High) I will have to play 
>with the Toroid size to make the secondary resonant frequency match the 
>frequency of the primary circuit.  I have a 12KV/60mA NST and plan on 
>using a series static gap but am uncertain how many piecesof 3/4" copper 
>tubing I shoud use. If someone could advise me on this or point me in the 
>direction of an answer I would appreciate it.
>
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