Antique radios, Old Time Radios
PK-12
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Country:
United States of America (USA)
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| Identical to |
PK-12
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| Similar
Tubes |
Normally replaceable-slightly different:
PR-11-A
; UV211
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| Base |
Jumbo 4-pin bayonet (1918)
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| Was used by |
Industrial |
| Filament |
Direct / Specified voltage AC/DC |
| Description |
This tube was designed by GE as an industrial version of the UV211. It is designated as a Pliotron. Special PR-11-A.(further industrial version of UV211)
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| Information source |
- - Manufacturers Literature GE Vacuum Tube Designations 12/10/1930
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PK-12: Fin Stewart
Fin Stewart
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Just Qvigstad
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