Re: vacuum pump on da ebay

["Tesla list" <tesla@xxxxxxxxxx>]

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).

Mike
----- 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.
>
> Ed