Antique radios, Old Time Radios
337A
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Country:
United States of America (USA)
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| Identical to |
337A
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| Similar
Tubes |
Heater different:
78
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| Base |
6-Pin-Base U6A, old, USA
Top contact with a cap.
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| Filament |
Vf 10 Volts / If 0.32 Ampere |
| Description |
Variable mu pentode; gold-plated grid. 1.7 mS. Similar to 78 with different heater voltage.
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| Information source |
Tube Lore (I)
- - Manufacturers Literature
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337A: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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337A: own collection
Peter den Boer
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