Antique radios, Old Time Radios
QK464A
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Country:
United States of America (USA)
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| Identical to |
QK464A
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| Similar
Tubes |
Multiple differences or of other kind:
QK411A
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Successor Tubes
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QK685
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| Base |
Duodecal (12-pin), B12A (not glass)
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| Filament |
Vf 6.3 Volts / If 0.6 Ampere / Indirect |
| Description |
3" recording-storage tube, capable of retaing stored images for many hours and even after more than 30k readings. 600 lines minimum resolution. Magnetic focus and deflection.
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| Information source |
- - Manufacturers Literature
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Just Qvigstad
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