Antique radios, Old Time Radios
438A
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Country:
United States of America (USA)
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| Identical to |
438A
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| Similar
Tubes |
Other characteristic (electr. data):
397A
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| Base |
Octal with RF-contact (long)
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| Filament |
Vf 6.3 Volts / If 0.44 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Reflex klystron used in microwave receivers. Similar to WE 397A, gives full coverage of the 3700 to 4200MHz band when oacillating 65MHz over the antenna signal. 723A/B format, with octal-like base including the coaxial output probe.
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| Information source |
Tube Lore (I)
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438A
Emilio Ciardiello
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Just Qvigstad
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Collection of
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