Re: How to Tune a Flat Spiral Coil

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

Original poster: "Peter Lawrence by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Peter.Lawrence-at-Sun-dot-com>


My guess is that the best way to construct a flat spiral TC is to use a
single ended NST or OBIT (one that has only one HV terminal) and connect
the outer end of the flat secondary and the inside of the primary together and
to GND. If the primary is also a spiral then its HV end is as far away from
the secondary as possible.

good luck to you all,
-Peter Lawrence.


>Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
<Mddeming-at-aol-dot-com>
>
>In a message dated 2/26/02 10:00:05 AM Eastern Standard Time, tesla-at-pupman-dot-com
>writes:
>
>
>>
>> Ah, you didn't say -that- before. I always got the
>> impression that it was arcing right through uncut
>> undamaged plexi and hot glue.
>>
>> Where is it arcing to?
>>
>> And I thought those three outer ends were grounded and
>> the center was the high voltage side.
>>
>> Steve Greenfield
>
>
>Hi Steve, Dave, All,
>This makes more sense all the time. With the center grounded, is seems to me
>that what you are seeing is analogous to what you would have with a standard
>TC, if the primary were put around the topload instead of the base; i.e.,
>ionization and severe arcing from the HV end of the secondary coil to the
>nearby primary.
>
>