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RE: vacuum pump
From: gweaver[SMTP:gweaver-at-earthlink-dot-net]
Sent: Saturday, July 12, 1997 1:48 AM
To: Tesla List
Subject: Re: vacuum pump
I use a compressor from an old Air Conditioner unit for a vacuum pump. I
bought a $10.00 vacuum guage from the local AC shop that reads -30 psi
vacuum. The guage is good because it tells you if your pump is working and
if you have any vacuum leaks. I pump my caps down to -30 then close the
brass valve between the compressor and the cap and open another brass valve
to the HV oil and back fill the cap with oil. It takes about 15 minutes to
connect the lines, pump the vacuum, back fill a cap with oil and its
finished. The cap is ready to use with no breaking in period required. I
connect all my caps to full power minutes after I make them. If the caps
are going to self distruct I want them to do it now not later.
Gary Weaver
At 07:31 PM 7/11/97 -0500, you wrote:
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>From: doug swanson[SMTP:des-at-ellijay-dot-com]
>Sent: Friday, July 11, 1997 6:27 PM
>To: Tesla List
>Subject: vacuum pump
>
>In my quest for Tesla related "stuff", I've acquired a vacuum pump,
>second hand, in hopes that what it is will be what I need.
>
>While looking through the paperwork I find references as to the
>performance of it, I find that the ultimate vacuum is measured in
>microns. In this case, 100 microns or better (tested to 25 microns).
>I've heard of vacuums being measured in Torr, and in inches of Hg, but
>can anyone out there enlighten me as to how I can convert this unit of
>measure to something that I can understand?
>
>I had hoped to use it to pump down capacitors, and would also like to
>use it to evacuate glass tubes and bulbs. But I don't know if this pump
>is able to do it, or if it is actually too much for the job. Originally
>I think it was owned by an air-conditioner service person, if that helps
>any. (No it isn't a freon recovery unit, just a vacuum pump...)
>
>Thanks for any information that will be of use!
>
>doug
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