Antique radios, Old Time Radios
UX230
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.06 Ampere / Direct / Battery = |
| Description |
Originally made with the T9 (30 mm diameter glass bulb), this tube was made from early in 1931 with the "S12" bulb (38 mm diameter) and generally branded type 30 only. A year later, the bulb size was changed to "ST12". The weight increased by 2 grams. Most US manufacturers still making the tube adopted the changes as a natural progression.
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Dimensions (WHD)
incl. pins / tip |
x 93 x 30 mm / x 3.66 x 1.18 inch |
| Weight |
32 g / 1.13 oz |
| Information source |
Tube Lore (II) p. 26
Saga of the Vacuum Tube, Tyne p. 330
-- Collector info (Sammler)
Taschenbuch zum Röhren-Codex 1948/49
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UX230: Fin Stewart
Fin Stewart
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12
Collection of
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