[AMPS] Gassy Tubes and Gas Arcs

[Jon Ogden]

>There are two kinds of blue glow with 8166/4-1000A tubes:  Where the 
>electron beam strikes the glass envelope, and in the evacuated space.  
>The first case being normal and the second case being abnormal.

In the evacuated space???  Isn't the whole tube evacuated??  Please 
explain...

73,

Jon
KE9NA


-------------------------------------
Jon Ogden
KE9NA

http://www.qsl.net/ke9na


"A life lived in fear is a life half lived."


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