[Top] [All Lists]

Re: [Amps] Holding a vacuum

To: Amps group <>
Subject: Re: [Amps] Holding a vacuum
From: Bill Turner <>
Date: Mon, 1 Dec 2014 09:38:34 -0800
List-post: <">>
------------ ORIGINAL MESSAGE ------------(may be snipped)

On Thu, 27 Nov 2014 19:15:08 -0500, you wrote:

>What metric does one use to determine if a given tube holds a vacuum or not?>
>Karin   K3UU


Tubes that lose vacuum draw excess anode current even when idling and
if they are glass, one can see a blue glow in between the elements
when HV is applied. 

73, Bill W6WRT
Amps mailing list

<Prev in Thread] Current Thread [Next in Thread>