Antique radios, Old Time Radios
12A7
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Country:
United States of America (USA)
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Brand:
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| Tube type: |
HalfWave Rectifier-BeamPowerTetrode |
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| Identical to |
12A7
= CV909
= NU-12A7
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| Similar
Tubes |
Multiple differences or of other kind:
EK1000
|
| First Source
(s) |
Dec.1933 : 70 Years of Radiotubes and V.
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Successor Tubes
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25A7
32L7
70L7GT
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| Base |
7-Pin-Base U7A = small, old, USA (Codex=Ma)
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| Filament |
Vf 12.6 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Output tube + Halfwave rectifier
Text in other
languages (may
differ)
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| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
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12A7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
More ...
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12A7: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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12A7: Raytheon Databook 1937
Emilio Ciardiello
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):60
Collection of
Collection of a member from FIN |
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| Data Compliance |
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