Antique radios, Old Time Radios
7Q7
Country:
United States of America (USA)
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Identical to |
7Q7
= CV899
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Similar
Tubes |
Heater different:
14Q7
Other base:
6SA7GT
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First Source
(s) |
21.Aug.1939 : Electron Tube Registration List
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Predecessor Tubes |
7B8
6SA7GT
6A8GT
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Successor Tubes
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6BE6
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Base |
Loctal-8, B8G (Sylvania, 1938) (Codex=Wd)
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Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC |
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
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7Q7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
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7Q7: From own collection
David Erali
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7Q7: Telefunken Werkstattbuch
Wolfgang Bauer
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7Q7: Sylvania Technical Manual
Peter Hoddow
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from Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):189
Collection of a member from FIN
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