Antique radios, Old Time Radios
31Z
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Country:
United States of America (USA)
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| Identical to |
31Z
= HY31Z
= HY1231Z
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Br)
2 Top contacts.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 6 Volts / If 2.5 Ampere / Direct |
Dimensions (WHD)
incl. pins / tip |
x 123 x 45 mm / x 4.84 x 1.77 inch |
| Weight |
50 g / 1.76 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia p.
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31Z: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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