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Re: GM coil record



At 03:04 PM 04/22/2000 -0700, you wrote:
>> core).  As far as I know, the 13.25 inch arc I got out of an ignition coil
>> is by far the furthest ever recorded.  In this case, the General Motor's
>> coil was picked as a standard.  Ford and others coils don't count toward
>> the "GMHEICSLR".
>> 
>> Cheers,
>> 
>>        Terry
>
>
>	What did you do special?  I've never been able to get more than three
>or four inches out of a single coil without internal breakdown, even
>running oil immersed?  
>
>Ed
>

Hi Ed,

Where have you been!?! ;-))

Most of the details are in my old post at:
http://www.pupman-dot-com/listarchives/2000/January/msg00257.html

Also
http://users.better-dot-org/tfritz/site/misc/GMHEI.ZIP

Your four inch arcs are typical for a "novice" attempt at the GMHEICSLR
;-))  Basically your are running it as a transformer or induction coil.  I
remove the steel core (which just saturates and eats all the energy) and
run the primary and secondary winding's in a true Tesla coil configuration
with a primary capacitor, spark gap, etc.  It makes a BIG difference!!  

Probably the heat and wasted energy is killing your standard configuration.
 You are putting a few joules into the thing like I do but it is never
making it the them big output arcs.  Think of making a Tesla coil out of it
and maybe you will get sparks up to 13.249 inches ;-)))

Cheers,

	Terry




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