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I've had this tube for a number of years and never could find a use for it.
It's water cooled from the inside. I have several Eimac water cooled tubes used in a single ended .25 watt A-400y2 amp, but nothing like this. What piece of equipment would this have come from?Also, how would I the fix the pins? They look like they need to be straightened some, and cleaned.
I'm also conserned aout the getter. I don't see the typical silver stuff.
"I can't compete with the dead". (Buck W. 2010)
Edits: 02/13/15 02/13/15 02/13/15 02/13/15 02/13/15Follow Ups:
nt
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You should have waited for April 1.
4BZ6? That is a common IF tube used in many series connected filament black and white portable TVs of the day.
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
but then I haven't been out of bed all that long either.
Apparently, people think I think this is a water cooled tube....I think.
"I can't compete with the dead". (Buck W. 2010)
Water cooled tubes, like machine gun barrels, have a sealed jacket around them.
I think you found a tube that was under water for a long time and has a minute leak.
Well, I've never heard of anything like this. What model is it exactly? I tried searching 4BZ-types and found no tubes with water in them. They're all standard ones that like plenty of vacuum for electron flow haha
I think we're looking at an accident rather than an actual functional tube. Tube manufacturing became automated early on and it's possible this is a factory defect. Perhaps during evacuation, there was water or some liquid heavy enough not to vaporize into the vacuum that got dumped in, the seal was made, the tube continued down the line. It slipped through QC somehow, made its way into a box, and found itself on a shelf.
It would explain the slow oozing oxidization coming through the pins, the erosion of the internals producing that funky colour, and the lack of any getter as contact with water would have nulled it). It's a nice keep sake, but I wouldn't use it.
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May your tubes be warm, long-lasting, and always lively. Holy be thy heater.
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