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Re: Capacitor



Tesla List wrote:
> 
> >From paulmil-at-ibm-dot-netSat Jul  6 16:20:06 1996
> Date: Sat, 6 Jul 1996 04:07:55 GMT
> From: PAUL MILLOTT <paulmil-at-ibm-dot-net>
> To: tesla-at-pupman-dot-com
> Subject: Re: Capacitor
> 
> Safety check on a new capacitor.
> 
> I just received a new capacitor and I am not sure if it is safe to use it.
> It has an air bubble inside which seems quite large. I realise it may be
> there as an expansion space for the oil but it seems very big.
> 
> If I do use it, do I stand it on end to move the bubble to the top or use it
> on its side where the bubble is elongated but much thinner and away from the
> ends of the conductive metal foil?
> 
> The cap is marked NSG 502-10K .005MFD  10000 V.Pulse The Cond.Prod.corp.
> 11999305. It is in a glass case about 6 inches long with metal alloy ends.
> The inside cap itself is blue and the air bubble is 2 inch long by 3/4 inch
> wide at its centre when the cap is lying on its side. The bubble is between
> the glass and the cap material inside but it is difficult to judge how deep
> the space is between the plastic and the glass
> 
> Because it is quite a thick glass case I think it would cause quite a blast
> if it were to explode. I am putting it inside a piece of pvc drain pipe but
> will not switch it on until someone tells me it is safe. That way I can
> blame you if it goes bang! Just joking. I would apreciate confirmation that
> the bubble is just a safety expansion space.
> 
> Thanks.
> 
> Paul Millott  (Failed again)


Paul,

The cap is a mylar unit and is unsuitable for Tesla service.  They will 
explode.  I've done it before.

Richard Hull, TCBOR