Antique radios, Old Time Radios
Hund_2
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Country:
United States of America (USA)
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| Identical to |
Hund_2
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| Similar
Tubes |
Multiple differences or of other kind:
Hund_1
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| Base |
UY-Base, 5 Pins (USA, April 1927)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
--/-- |
| Description |
This tube is a cold cathode type invented by Dr august Hund of the Wired Radio Co of New York. The element consists of a tubular anode mounted vertically and containing other elements. It was claimed to be a "filamentless" triode and was able to do everything a three elemebt tube could do - amplify, rectify and oscillate. No patent for this tunbe has been located andapparently the tube was not offered commercially. This tube adopted a tubular "T14" bulb which was about 75 mm high.
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Dimensions (WHD)
incl. pins / tip |
x x 45 mm / x x 1.77 inch |
| Information source |
Popular Mechanics Date unknown
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Hund_2: Fin Stewart
Fin Stewart
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Just Qvigstad
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