Jon Ogden wrote:
>
> But you said that one blue glow is from electron beams striking the
> envelope. The other is in the "evacuated space." How do I know which
> from which?
Did you ever see a VR150, 0B2, etc. gas regulator tube? Or even a neon bulb?
You
can see the gas glowing inside the tube. It looks quite different from the
fluorescence on the glass envelope of a tube.
Vic, K2VCO
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|