Re: RE- Violet Ray Tesla Coil

Subject:  Re: RE- Violet Ray Tesla Coil
  Date:   Wed, 4 Jun 1997 03:28:16 +0500
  From:   "Alfred A. Skrocki" <alfred.skrocki-at-cybernetworking-dot-com>
    To:   Tesla List <tesla-at-pupman-dot-com>

On Tue, 03 Jun 1997 08:18:00 GMT Robert Michaels
<robert.michaels-at-online.sme-dot-org> wrote;

>         The construction you describe is virtually identical to that
>         of the high-vacuum leak testers widely used in laboratories
>         and available from dealers in chemistry/physics apparatus.

Yes I noticed this as soon as I opened the unit. I machined a steel
rod to fit the "violet-ray" coil and pointed the other end so I can 
now use it as a vacuum tester to.

>                 How accurate it is to characterize these as Tesla
>                 coils is highly questionable -- tho I won't re-
>                 peat my diatribes on the subject here (you're
>                 welcome).

Considering that the circuitry is identical to a Tesla coil except it
is using inductive kick back to produce the H.V. for the primary 
instead of a transformer, I see no reason not to call it a Tesla coil

>         When purchased new, the vacuum-leak testers come with dire
>         warnings about not using the adjustment knob to turn the
>         tester on and off.  I'm here to tell you the warnings are
>         not without basis:
>                 | Use the adjustment knob as an on-off control |
>                 | and suffer the consequences.  You have been  |
>                 | warned.  This is the voice of experience.    |

Aside from causing the spring to break due to metal fatigue, I don't 
see what harm it could cause. I did install a switch on it's power 
cord though, I didn't like the idea of having to pull it's plug to
turn it off. 
>         It is my sense that the coils sold for violet-ray use are
>         not as powerful as those sold as vacuum-leak testers al-
>         though they appear to be similarly-constructed.
The next time I go the the neon sign shop that I get tranies from,
I'll take the "violet-ray" coil with and compare it's output to his 
vacuum tester.


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                           Alfred A. Skrocki
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