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Re: vacuum pump on da ebay

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

Also has a 2 stage that's rated .1 micron/millitorr. Always thought a diffusion or turbomolecular was needed for that low (almost low enough to make your own vacuum tubes/caps/etc).

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, August 09, 2006 10:31 PM
Subject: Re: vacuum pump on da ebay

Original poster: Tim S <stm800@xxxxxxxxxxx>

i'd be really surprised if that old single stage would hit 15 microns with a decent 2 liter of volume to be removed. new oil tko19 will be needed aditional 20 dollars plus shipping a gallon container.

i guess i'm just spoiled to have new 2 stage pumps that truly hit 4 microns absolute pressure.

all the best  tim

Tesla list <tesla@xxxxxxxxxx> wrote:
Original poster: Ed Phillips

Any of those three pumps would be useful. I'd be surprised if
the last two go for under a couple of hundred bucks each and worth it
if in decent shape.