Antique radios, Old Time Radios
Detector_Star
Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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Was used by |
Radio/TV-reception etc. |
Filament |
Vf 3.5 Volts / If 0.5 Ampere / Direct / Battery = |
Description |
This tube was made in Holland about 1924-25, in an attempt to sell tubes in the US. GE/RCA filed four patent suits against Philips. Both companies realised that years of litigation might follow and agreed to a compromise: GE/RCA would share patent rights and Philips would stay out of GE/RCA territory.
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Dimensions (WHD) incl. pins / tip |
45 x 103 x 35 mm / 1.77 x 4.06 x 1.38 inch |
Weight |
42 g / 1.48 oz |
Information source |
Saga of the Vacuum Tube, Tyne Pages 428 & 429
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Detector_Star: Fin Stewart
Fin Stewart
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Just Qvigstad
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