Antique radios, Old Time Radios
6AJ7
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Country:
Canada
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| Identical to |
6AJ7
= 6AJ7/6AC7
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| Similar
Tubes |
Normally replaceable-slightly different:
CV849
Other class quality (otherwise equal):
6AC7
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| First Source
(s) |
25.Jan.1944 : Electron Tube Registration List 360
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uka)
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| Was used by |
Radar |
| Filament |
Vf 6.3 Volts / If 0.45 Ampere / Indirect / Specified voltage AC/DC |
| Description |
6AJ7 was an improved variant of industry standard 6AC7 intended for applications in radar receivers. Tighter control of the cutoff voltage, compared to its 6AC7 prototype, and bare metal ring over the base, in order to ground the metal skirt when inserted in a special socket with side fingers.
It was registered to Canadian REL during the war, in January 1944. Being very similar to its prototype, REL also requested the double marking permission, 6AJ7 / 6AC7 for this tube.
Low-loss micanol base.
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| Tube prices |
1 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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6AJ7: Internet
Miguel Angel Trujillo-Rodriguez
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6AJ7: ARRL Handbook 1972
Anonymous 10 Collector
More ...
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Just Qvigstad
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6AJ7: elektron taschenbuch 1952
Heinz Höger
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
Collection of
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