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yup, you are right..... But an A/C pump is only $200. and can be resold. A Diffusion pump is tons more and not easily resold. Besides when I was a kid I made light bulbs with a small wire, a jar, a piece of plastic, and a candle to burn out the air inside the setup, sealed with wet wax. So I would imagine a A/C vacuum pump can come closer to a good usable vacuum level than a candle, again worth the experiment.
And if the tv museum got the crt rebuilding stuff, then they got a diffusion pump, and a getter coil.... It can all be done there with that stuff......
The diffusion pump would almost guarantee a good tube if this were to work. I guess that pump could be used on the last day of vacuuming out the enclosure.....
What kind of equipment do you think they had to make the first light bulb, or tube.... Not the best since they were pioneers.
I bet with a leaking bad tube, a way can be found, or should be tried to fix it without cracking it open. Should be worth the experiment.
The result will surely not be perfect, but will not crack the tube, or contaminate the inside of the tube.
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Last edited by Username1; 05-09-2013 at 04:26 PM.
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