Donald Chester, K4KYV has mentioned sometimes the blue glow is not due
to a tube being gassy, but to impurities...
Here is a nice webpage about the blue glow..
http://www.jacmusic.com/html/articles/blueglow/blueglow.htm
John kx5JT
-----Original Message-----
From: DAVE WHITE <mausoptik@btinternet.com>
To: amps@contesting.com; Ryan Foster <foster.ryan@gmail.com>
Sent: Wed, Apr 7, 2010 4:56 pm
Subject: Re: [Amps] [AMPS] 3-500z "glow blue"
If I key down with my 4-1000A amp tuned up, I can see a faint blue glow
around
the glass, looking from above - but I thought that was normal
Dave G0OIL
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