Antique radios, Old Time Radios
PR-11-A
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Country:
United States of America (USA)
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| Identical to |
PR-11-A
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| Similar
Tubes |
Normally replaceable-slightly different:
PK-12
; UV211
Other class quality (otherwise equal):
PR-12
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| Base |
Jumbo 4-pin bayonet (1918)
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| Was used by |
Technology / Measurement |
| Filament |
Direct / Specified voltage AC/DC |
| Description |
This tube was designed by GE as an industrial version of the UV 211 and PK-12. it s deignated Pliotron. 50w low impedance.
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| Information source |
- - Manufacturers Literature GE Vacuum Tube Designations 12/10/1930
Tube Lore (II) p. 30 & 214
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PR-11-A: Fin Stewart
Fin Stewart
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Just Qvigstad
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