Antique radios, Old Time Radios
GPR18
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Country:
Great Britain (UK)
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| Identical to |
GPR18
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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 5 Volts / If 0.14 Ampere / Direct / Battery = |
| Description |
11,000 Ohms, amplification factor 9.5
The type number prefix for this tube is shown as PR in Wireless World, November 27, 1929.
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| Information source |
Wireless World (The), London (WW, 79) October 9, 1929 & November 27, 1929.
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GPR18: Fin Stewart
Fin Stewart
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Just Qvigstad
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