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Old 11-21-2006, 01:45 PM   #1
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A Home-Made Triode!??!

http://home.earthlink.net/~lenyr/hm-triode.htm (via hackaday.com)

This master tinker home-brewed a functional vacuum triode. Wow.
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Old 11-29-2006, 12:50 AM   #2
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Do It Yourself

Diy Amps, Diy Pickups, Diy Stompboxes, Now Diy Vacuum Tubes. It's Amazing What A Person Can And Will Do With A Little Bit Of Knowledge.
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Old 11-29-2006, 05:26 AM   #3
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Originally Posted by Don Symes View Post
http://home.earthlink.net/~lenyr/hm-triode.htm (via hackaday.com)

This master tinker home-brewed a functional vacuum triode. Wow.
That's clearly not a vacuum tube as it's clearly exposed to the open air. However, H.P Friedrichs has made some.
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Old 11-29-2006, 12:59 PM   #4
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think the article mentioned using a glass salt-shaker as the bulb......just not enough pictures, I'd guess.
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Old 11-29-2006, 03:48 PM   #5
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I think it goes without saying that he operated it in a bell jar connected to a vacuum pump.
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Old 11-30-2006, 11:01 AM   #6
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this guy apparently made some also:

http://www.pandcamp.com/tubeamp.htm
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Old 03-01-2007, 10:32 AM   #7
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Originally Posted by dai h. View Post
this guy apparently made some also:

http://www.pandcamp.com/tubeamp.htm
I may be able to read japanese, but it doesn't look like he made any of those tubes.
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