Antique radios, Old Time Radios
U.4KW
| Base |
Wires
Wires only.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 21 Volts / If 40 Ampere / Direct / Specified voltage AC/DC |
| Description |
Rectifier tube designed to operate with 27,500 anode volts at 4000 watts. Tube had a silica bulb and flying leads.
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Dimensions (WHD)
incl. pins / tip |
x 635 x 114 mm / x 25.00 x 4.49 inch |
| Information source |
British Radio Valves - The Vintage Years: 1904-1925 Pages 83 and 129
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