Antique radios, Old Time Radios
8421
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| Tube type: |
Numerals- and Symbols indicating tube Indication |
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| Identical to |
8421
= B5092
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| Base |
13 pin or wire all glass N17S-1, B13B
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| Filament |
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| Description |
Burroughs 0-9 indicator. Wide Angle Front View 0.6", 15mm, high numerals.
Ultra-long-life type.
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| Information source |
- - Manufacturers Literature
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Just Qvigstad
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8421: Manufacturer's Literature
Emilio Ciardiello
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