| General > General Technical Chat |
| Massive old vacuum tube, anyone know what it is? |
| (1/9) > >> |
| macona:
Picked up this old vacuum tube, its rather large. I think it might be a diode, look like 3 terminals, the base, ring, and what I am guessing is the anode. The base and ring are electrically connected together with a very low resistance so I think that is the heater. The "anode" is hollow so I am guessing water was flowed though it to keep it cool, or maybe just for surface area and save on weight and material. I think the getter pump on the side was added, this came from a glass display at a local university. Anyone seen anything like it? The cutting mat it is on is 1" increments and 1/2 squares. So about 21" long Old vacuum tube by Jerry Biehler, on Flickr |
| gbaddeley:
Thyratron or Mercury Rectifier? A Triode of this size would have a ceramic or metal case, not glass. |
| Stray Electron:
A rectifier tube would be my guess. Look closely and see if you don't see some tiny drops of mercury in it. |
| amyk:
My guess is something for radar use. |
| T3sl4co1l:
What's the extra bulb thing, is that kind of behind, is it really connected..? A few more angles also showing inside the electrode structure maybe, might be informative. Tim |
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