Antique radios, Old Time Radios
3B7
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Country:
United States of America (USA)
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| Identical to |
3B7
= VT-182
= CV811
= 1291
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| Predecessor Tubes |
1291
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| Base |
Loctal-8, B8G (Sylvania, 1938) (Codex=Wy)
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 2.8 Volts / If 0.11 Ampere / Direct / Battery = |
| Description |
HF transmitting tube, 5.4W total dissipation. Tipically delivers 2.8W at 25MHz and 1.4W at 125MHz as oscillator. Can be operated with both filament segments in parallel, draining 220mA at 1.4V.
RMA code for Sylvania 1291 developmental type
Text in other
languages (may
differ)
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| Tube prices |
3 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
Röhren-Taschen-Tabelle, (Franzis RTT)
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3B7: Datenblatt
Wesselin Tzenow † 25.5.10
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3B7: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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3B7: Sylvania Technical Manual
Peter Hoddow
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
Collection of
Collection of a member from FIN |
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