Antique radios, Old Time Radios
PJ-12
Country:
United States of America (USA)
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Identical to |
PJ-12
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Similar
Tubes |
Other class quality (otherwise equal):
UV211
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Base |
Jumbo 4-pin bayonet (1918)
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Was used by |
Industrial |
Filament |
Direct |
Description |
This tube apparently used in GE carrier-current systems. Special PR-11-A.
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Information source |
Tube Lore (II) p. 214
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PJ-12: Fin Stewart
Fin Stewart
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Just Qvigstad
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