Re: [TCML] bipolar coil

[FutureT@xxxxxxx]

In a message dated 5/2/2008 8:19:40 P.M. US Eastern Standard Time,  
deano@xxxxxxxxxxxxxxxx writes:

>On Friday 02 May 2008 03:52:50 pm Kris Grillo wrote:
>>  I'm putting together a small twin coil setup and I'm wondering if  anyone
>> could look over these numbers for me. The secondaries are  2" pvc (2.375"
>> od) with 975 turns of 30 gauge and a 3 x 12 toroid  each. The power supply
>> is 2x 9KV 60mA and a 9KV 30 mA NSTs in  parallel for 9KV 150mA. The gap is 
a
>> 120 BPS synchronous rotary  gap. The primaries are 6 turns of 1/8" OD 
copper
>> tubing with .25"  spacing and inside radius of 2.4375".

>Hi

>Just my most  humble opinion, but that is an awful lot of power for such 
small  
>coils. I would think a single 9x30 would be quite adequate, a single  9x60 
at 
>the most.

>later
>deano


Deano,
 
That's a good point.  Even a 9x30 should give 35"  sparks
between the two toroids.  A 9x60 should give almost 49"  sparks
between toroids.  I accounted for the low voltage and thin  wire,
and possible few primary turns.  Otherwise the sparks would
be even longer.
 
John









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