Antique radios, Old Time Radios
4T250A1
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Country:
France
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| Identical to |
4T250A1
= 813
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| Similar
Tubes |
Normally replaceable-slightly different:
4T250A0
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| Base |
7-Pin-Base U7G = Giant, old, USA
Top contact with a cap.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 10 Volts / If 5 Ampere / Direct |
Dimensions (WHD)
incl. pins / tip |
x 192 x 65 mm / x 7.56 x 2.56 inch |
| Weight |
230 g / 8.11 oz |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 228 & 229
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 450, p. 986
Taschenbuch zum Röhren-Codex 1948/49
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4T250A1: arrl Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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4T250A1: Babani 1949-1951
Patrice Zeissloff
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