Antique radios, Old Time Radios
CL502A
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Country:
France
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| Identical to |
CL502A
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| First year |
1926
?
-- Collector info (Sammler) Schätzung
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| First Source
(s) |
Feb.1927 : -- Original-techn. papers. L'ABCDaire des lampes de TSF des jeunes années
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.5 Ampere / Direct |
| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 15
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 98, p. 132
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Just Qvigstad
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