Antique radios, Old Time Radios
25B5
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Country:
United States of America (USA)
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Brand:
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| Tube type: |
MULTI-SYSTEM, internal coupling Power/Output |
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| Identical to |
25B5
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| Similar
Tubes |
Other base:
25N6G
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| First Source
(s) |
17.Aug.1936 : Electron Tube Registration List
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| Base |
6-Pin-Base U6A, old, USA (Codex=Ka)
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| Filament |
Vf 25 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
| Description |
Direkt intern gekoppelte Vorstufen-Triode auf End-Triode (Kathode-Gitter). Vorstufe ohne Spannungsverstärkung (STromverstärkung). Endstufe arbeitet mit positiver Gitterspannung. Arbeits bzw. Stabilisierungswiderstand in der Röhre integriert.
Siehe auch: Zero-Bias- und Triple-Twin- Röhren
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| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
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25B5: Schematic from my documents.
Pier Antonio Aluffi
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25B5: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
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25B5: My schematic collection.
Pier Antonio Aluffi
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):66
Collection of
Collection of a member from CH |
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