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1. Re: [Amps] preserving tubes (score: 1)
Author: ian@ifwtech.co.uk
Date: Thu, 04 Oct 2012 09:16:04 +0100
If a tube has leakage to air, it is doomed anyhow, and storing it in a vacuum can only delay the inevitable. Leakage will start right in again when the tube is put into service. 73 from Ian GM3SEK it
/archives//html/Amps/2012-10/msg00020.html (9,219 bytes)

2. Re: [Amps] ceramic vs glass (score: 1)
Author: "Ian White" <ian@ifwtech.co.uk>
Date: Sun, 25 Jan 2015 13:41:46 -0500
Exactly. The increased need for protection isn't due to any differences between glass and ceramic construction, but all the other internal changes that were introduced at the same time - along with
/archives//html/Amps/2015-01/msg00279.html (10,228 bytes)

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