Antique radios, Old Time Radios
81
Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
|
Was used by |
Radio/TV-reception etc. |
Filament |
Vf 7.5 Volts / If 1.25 Ampere / Direct / Parallel, (AC/DC defined voltage) |
Dimensions (WHD) incl. pins / tip |
x 158 x 54 mm / x 6.22 x 2.13 inch |
Tube prices |
2 Tube prices (visible for members
only)
|
Information source |
Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
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81: Internet
Miguel Angel Trujillo-Rodriguez
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81: RMG
Robert Gillespie
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81
Emilio Ciardiello
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81: Sylvania Technical Manual
Peter Hoddow
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from Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):145
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