Antique radios, Old Time Radios
RRBF
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Country:
Italy
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Brand:
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| Tube type: |
Triode, vacuum Audio Frequency |
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| Identical to |
RRBF
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.06 Ampere / Direct / Battery = |
| Description |
Triode made to Italian Army specs
120V anode voltage, 10mA max anode current, -2.5V grid bias. Gain 10, Rp 8Kohm. Used in audio frequency amplifier stages.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
-- Original-techn. papers.
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RRBF: rtt
Anonymous 10 Collector
More ...
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Just Qvigstad
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RRBF: My book
Pier Antonio Aluffi
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
Collection of a member from D |
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