Antique radios, Old Time Radios
R1_Osram
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Country:
Great Britain (UK)
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| Identical to |
R1_Osram
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| Base |
Edison (candelabra) 12 mm
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| Was used by |
Technology / Measurement |
| Filament |
Direct / Specified voltage AND current AC/DC |
| Description |
Small rectifier tube, with anode connection from a wire lead at the top end of the tube. (same design as Osram R2/R4 but minus grid). Tube developed in the tube laboratory of Osram-GEC Lamp Works for experimental purposes. First made August 1918
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| Information source |
- - Manufacturers Literature page 14
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| Data Compliance |
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