Antique radios, Old Time Radios
7R7
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Country:
United States of America (USA)
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| Identical to |
7R7
= CV900
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| Similar
Tubes |
Other characteristic (electr. data):
EBF21
Heater different:
14R7
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| First Source
(s) |
07.Mar.1941 : Electron Tube Registration List
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| Predecessor Tubes |
7E7
6B8GT
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Successor Tubes
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6DC8
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| Base |
Loctal-8, B8G (Sylvania, 1938) (Codex=Wb)
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| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Tube prices |
2 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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7R7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
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7R7: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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7R7: Sylvania Radio Tubes Technical Manual
Didier Tholomier
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):58
Collection of
Collection of a member from FIN Collection of a member from CDN |
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