Antique radios, Old Time Radios
4B27
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| Tube type: |
Full-Wave Mercury-Vapor Rectifier Power-supply |
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| Identical to |
4B27
= 1297
= 16X897
= 38897
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| Filament |
Vf 2.5 Volts / If 10 Ampere / Half indirect |
| Description |
Tungar-Type rectifier. 1000V PIV, 2A average current, 6A peak, 9 to 12.5V typical forward drop during useful life.
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| Information source |
Tube Lore (I)
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4B27: Manufacturer's Literature
Emilio Ciardiello
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4B27: Manufacturer's Literature
Emilio Ciardiello
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