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Forums
4hv.org :: Forums :: Tesla Coils
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Ceramic vacuum tube question

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Patriot
Tue May 27 2008, 04:15PM Print
Patriot Registered Member #1507 Joined: Tue May 27 2008, 04:05PM
Location: el paso, texas
Posts: 39
I have a eimac 3cx100a5 tranmitting triode, I wanted to know if i could use it for a small vttc. Any help and advice anyone could offer would be greatly appreciated. I have attached the tube specs as a pdf for reference.
]3cx100.pdf[/file]
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Dr. Drone
Tue May 27 2008, 06:27PM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
shades
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Patriot
Wed May 28 2008, 03:31PM
Patriot Registered Member #1507 Joined: Tue May 27 2008, 04:05PM
Location: el paso, texas
Posts: 39
I know i should not buy any more ceramic tubes, but that still doesn't answer my question of whether or not i can use this tube in a small coil, i mean i might as well try instead of using it as a paper weight....Any thoughts
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Steve Conner
Wed May 28 2008, 03:36PM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Sure you can use it. I wouldn't expect much spark though, it's only rated 100 watts frown And go easy on the grid current, the grids in these things are precision structures, and if you overheat it, it could all too easily short to the cathode.

BTW, I always thought it was the other way round: ceramic tubes keep their vacuum better than glass ones.
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Dr. Drone
Wed May 28 2008, 04:44PM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
shades
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Patriot
Wed May 28 2008, 04:47PM
Patriot Registered Member #1507 Joined: Tue May 27 2008, 04:05PM
Location: el paso, texas
Posts: 39
well i guess i'll just use this as a learning experience,
Next up a 20kw russian tube.

i appreciate all your input and i'll shop around for a decent
tube.
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