Antique radios, Old Time Radios
Pen220_4pin
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Country:
Great Britain (UK)
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| Identical to |
Pen220_4pin
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| Similar
Tubes |
Other base:
Pen220
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Sidecontact.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct / Battery = |
| Description |
Anode and screen voltages = 150v. gm 2.2 mA/V RL optimum load is 14,000 Ohms Power output 0.6W
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature 1937
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Just Qvigstad
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Collection of
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| Data Compliance |
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