Re: Trashed Tertiary Coil

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

Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

Paul,

What was the elevation of your toroid in relation to the top winding of your
tertiary coil?  The position of the toroid in relation to the winding has
some control over the electrical field and can help project the arcs more
horizontally than downward.  If your toroid is above your windings, you
could try lowering it some.

--Steve



----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, July 19, 2001 8:01 AM
Subject: Trashed Tertiary Coil


> Original poster: "Paul Arrowsmith by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <p_t_arrowsmith-at-hotmail-dot-com>
>
> After tuning at low power I powered up my Magnifier at full power (3.5KVA)
> for the first time with reasonable results, may of needed some minor fine
> tuning and a bigger top capacitance than the 700mm (27inch) one.
>   Was feeling pretty good about it all when a couple of arcs curled around
> from the toriod and doubled back onto the tertiary about 1/3 up from the
> base and trashed the tertiary coil by permanently shorting several
windings
> in two locations.
>   The tertiary is 720 turns of .71mm (SWG #22) enamelled copper wire wound
> on a 160mm (6.25 inches) diameter PVC stormwater pipe with 20mH inductance
> with a 20cm (3/4 inch)diameter corona ring at the base.
>   Using a non sync rotary with variable speed control (was yet to
experiment
> with series static gaps as well)and two .04uF caps in a equidrive circuit.
>   Has anyone had a similar experience with a magnifier or know how to
avoid
> the output discharge from killing the tertiary coil?
>   I don't know if I can repair the damaged coil yet, I may have to wind a
> new one?, so I don't want a repeat performance of tertiary coil
destruction.
>   Hope some one can help.
>   Paul A
>
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