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X-ray supply


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From:  D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent:  Thursday, March 26, 1998 10:40 AM
To:  Tesla List
Subject:  Re: X-ray supply

to: Mike

The voltage is too high and will usually present more problems with
insulation than the average coil builder is capable of dealing with.  What
you really need is current.  Drive current is what recharges your caps
rapidly and makes for a smooth running coil.  Would suggest any xmfr
delivering around 10-15 kV with a current level to match your intended
caps.  A pole pig costs approx $200 and with a suitable reactor will
provide all the current you need at a cost probably less than the shipping
costs for the x-ray xmfr.  Sometimes power companies will release used pole
units for around $10 per kva -- you have to do a lot of telephone
"shopping" with different power company repair facilities to come across
these deals.

DR.RESONANCE-at-next-wave-dot-net


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> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-pupman-dot-com>
> Subject: X-ray supply
> Date: Thursday, March 26, 1998 6:55 AM
> 
> 
> ----------
> From:  Hollmike [SMTP:Hollmike-at-aol-dot-com]
> Sent:  Thursday, March 26, 1998 5:59 AM
> To:  tesla-at-pupman-dot-com
> Subject:  Re: Multi layered tesla coil
> 
> Jim, all,
>    A buddy of mine just got a power supply that was removed from an X-ray
> diffraction instrument.  He informed me that it is rated at 60kV and
4kVA.  I
> am wondering if this can be used to power a TC easily?  I hope that it
was
> replaced due to some other fault than winding failure in the
transformer(it
> has some circuitry included with the tranny and I got just a vague
> description), but would like some feedback before attempting to use such
a
> tranny.  I calculated that it would have 66.6 ma output.  Does this type
of
> tranny have shunts that can be removed like neons to increase the current
> output? 
>      I know that I can make a series cap to withstand the voltage, but
will
> corona losses cause serious problems in design of such a system?   I
figure I
> would use at least 0.5" copper tubing for all primary connections and the
> primary coil to reduce the stresses, but will this be enough? 
>    My buddy lives in New Jersey and I live in Colorado, so I need to get
as
> much input as possible before I go to the expense of having this shipped
out
> here.
> Thanks,
> Mike Hollingsworth
>