| To: | amps@contesting.com |
|---|---|
| Subject: | Re: [Amps] Ion Pump |
| From: | donroden@hiwaay.net |
| Date: | Mon, 21 Jul 2014 07:26:48 -0500 |
| List-post: | <amps@contesting.com">mailto:amps@contesting.com> |
From: "Roger (K8RI)" We used a roughing pump to get to 10^-1 Torr, then a diffusion pump to make 10^-6, (-7.with a liquid N2 cold trap) At that point we'd start the ion pump. So, did William Shakespeare predict the vacuum tube when he wrote "Much Ado About Nothing" in 1598 ? Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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