Antique radios, Old Time Radios
660T
| Base |
L4 British large 4 pin (1922, LG4) (Codex=Eo)
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 6 Volts / If 4.5 Ampere / Direct / Specified voltage AC/DC |
| Description |
Pa<60W, Va <500; Ia=120mA at Vg= -120, gm=2.5mA/V Ra=1000. Po=11W
This tube listed in Babani (2nd edition, 1954) as having a B4 base.
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Dimensions (WHD)
incl. pins / tip |
80 x 185 x mm / 3.15 x 7.28 x inch |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 36 & 37
History of the British Radio Valve to 1940 p. 145, 171 & 204
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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660T: Fin Stewart
Fin Stewart
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Just Qvigstad
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