Antique radios, Old Time Radios
B47
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Country:
United States of America (USA)
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| Identical to |
B47
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| Similar
Tubes |
Other characteristic (electr. data):
B46
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| Base |
Edison big E27 = 27 mm
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| Filament |
Direct |
| Description |
This is a medium sized current regulator tube made by GE around 1940-45. It has an S17 straight conical shaped bulb and can be confused with light bulbs of this style. It has a sturdy wound filament in an inverted "U" shape with anchors supporting this, embedded in a glass rod horizontal to the base. There is also a strong anchor wire passing through the centre of the rod from the press to the top of the filament. Voltage range is 8 - 18 and current 2.05 to 2.35 amps.
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Dimensions (WHD)
incl. pins / tip |
56 x 122 x mm / 2.20 x 4.80 x inch |
| Information source |
- - Manufacturers Literature Data sheet ETI-194 dated April 1945.
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Just Qvigstad
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B47: GE Ballst Tubes ETI-194
Daniel Consales
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