Antique radios, Old Time Radios
7V7
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Country:
United States of America (USA)
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Brand:
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| Tube type: |
Vacuum Pentode RF/IF-Stage |
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| Identical to |
7V7
= 1231
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| Similar
Tubes |
Different connections:
7W7
Other base and data slightly different:
6AB7
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| First Source
(s) |
21.Jan.1941 : Electron Tube Registration List
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| Predecessor Tubes |
6AB7
1231
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Successor Tubes
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6AU6
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| Base |
Loctal-8, B8G (Sylvania, 1938) (Codex=W)
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| Filament |
Vf 6.3 Volts / If 0.45 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Power/video amplifier, sharp-cutoff pentode. Gm 5.8mSm, 4W. Actually it has four grids, G2 and G3 being parallel connected as screen.
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| Tube prices |
4 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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7V7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
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7V7: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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7V7: Sylvania Technical Manual
Peter Hoddow
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):34
Collection of
Collection of a member from D |
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| Data Compliance |
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