----- Original Message -----
From: "Jerry Lehrer" <jerryleh@xxxxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Thursday, August 18, 2005 5:44 PM
Subject: [rollei_list] Re: Bellows on 2.8D?
OK it just popped into memory (or out of my memory), the thing I was picturing was part of a tunable reflex Klystron.Richard,
In engineering we call it a diaphragm or a membrane seal . Jerry
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