6146 blue glow

[Steve Lords /WA7ISL]

thanks,i havent worked with tubes for years
and have to be reeducated
its been interesting seeing all the comments
thanks
steve
wa7isl :)


DMallozzi wrote:

> Hi All,
>
> I seem to remember a larger (4-400A size) power tube exhibiting a non-gas blue
> glow at my old saltmine. I seem to remember one of out tube engineers (I was
> working at a tube plant) saying that it was some form of electron clouding
> related to voltage plus taking large average currents. Its a few years ago and
> don't remember the particular situation.
>
> As for 6146's I have never seen a blue glow except for gas.
>
> Hope that didn't muddy the waters.
>
> 73s
>
> Dom
> N1DM
>
> p.s.: To answer the inevitable question. I was a test equiptment engineer at
> what was the Raytheon Co. Microwave Tube (magnetron, CFA, TWT) plant in
> Waltham, MA. That business was sold to Litton about 5 years ago.
>
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