[Hallicrafters] Elecron Tubes

[Edward B Richards]

I also remember National Union.

Ed

On Sun, 12 Feb 2006 13:05:02 -0700 "Ken Kaplan" <krkaplan at cox.net>
writes:
> The question about tubes made me wonder just who were the "real" U.S. 
> tube manufacturers 
> of the 20th century. Kind of a trivia thing, I guess. Here are names 
> I can think of although I 
> don't know for sure that they all actually built tubes instead of 
> simply labelling them. In no 
> particular order:
> 
> RCA
> GE
> Tung-Sol
> Cetron
> Eimac
> Sylvania
> Westinghouse
> Amperex
> Western Electric
> Zenith
> 
> There is probably a huge list of private labels including almost all 
> of our beloved boatanchors. 
> I'm beginning to wonder if maybe there were only a few companies who 
> actually 
> manufactured tubes (kind of like VCRs in Japan). I've always thought 
> tubes were cool. I 
> remember putting some in the bath tub when I was a kid. I wondered 
> why they would float 
> considering they were a vacuum. Please no explanations - I learned 
> that lesson long ago 
> <g>. As an older kid, I made trips to Mt. Wilson (north of Los 
> Angeles) to go dumpster diving 
> for tossed tubes (big radio & TV transmitter site). I guess the 
> concept of the magic that went 
> on inside those shiny glass objects was the draw. Even to this day, 
> I can look at a tube and 
> fantasize the goings on inside. Semiconductors don't have quite the 
> draw (pun intended). I 
> think that's why I got into electronics - magic that I could learn 
> and apply.
> 
> 73 Ken kb7rgg
> 
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