[Boatanchors] Boatanchors Digest, Vol 123, Issue 34

[hwhall at compuserve.com]

 This site seems to have a fairly comprehensive coverage of glows in tubes. Indicates the glow on the inner glass surface is caused by an electron bombardment.
http://www.thetubestore.com/Resources/Matching-and-other-tube-info/Blue-Glow

Wayne
WB4OGM

 

-----Original Message-----
From: james.liles <james.liles at comcast.net>
To: boatanchors <boatanchors at mailman.qth.net>
Sent: Mon, Apr 21, 2014 10:48 am
Subject: Re: [Boatanchors] Boatanchors Digest, Vol 123, Issue 34


Hi Richard:

I believe the blue glow on the glass is caused by electrons colliding with the 
glass not X-rays.  Don’t believe X-rays will occur before the elements exceed 
30,000 volts at those spacings.

More than likely a wayward beam element or element positioning error.

Kindest regards Jim K9AXN