[AMPS] Gassy Tubes and Gas Arcs

[Jon Ogden]

>> If it looks like it's on the inside of the envelope, it's ion 
>>bombardment. If it's
>>inside the anode structure, then it's gas. In my early days, I replaced many
>>tubes I thought were gassy! Good for RCA, GE, etc.
>>
>That's pretty much it, Roger.  However,  "ion" means an atom that has 
>gained or lost one or more electrons, I doubt that ions are involved.  In 
>this case, it appears that the flourescing material's atoms (probably one 
>of the silica-fluxing elements in the glass recipe -- perhaps boron?) are 
>being bombarded by electrons.  My guess is that this element fluoresces 
>as its electrons fall back into a lower orbit after being knocked into a 
>higher orbit by electrons that miss the anode and strike the glass 
>envelope. 

Thanks for the info guys....Thought my tubes were getting gassy.

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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