Antique radios, Old Time Radios
7Y4
Country:
United States of America (USA)
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Brand:
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Tube type: |
Full-Wave Vacuum Rectifier |
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Identical to |
7Y4
= U149
= CV901
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Similar
Tubes |
Other base:
6Z4
; 6Z4/84
; 84
; 84/6Z4
Other base and data slightly different:
1274
|
First Source
(s) |
09.Dec.1938 : Electron Tube Registration List
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Predecessor Tubes |
84/6Z4
6ZY5G
6Z4/84
6Z4
84
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Successor Tubes
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6X4
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Base |
Loctal-8, B8G (Sylvania, 1938) (Codex=W)
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Filament |
Vf 6.3 Volts / If 0.5 Ampere / Indirect / Specified voltage 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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7Y4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
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7Y4: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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7Y4: 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):334
Collection of
Collection of a member from FIN Collection of a member from D Collection of a member from FIN
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