Antique radios, Old Time Radios
A_Cossor
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Country:
Great Britain (UK)
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| Identical to |
A_Cossor
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Successor Tubes
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1925
WR1
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Sidecontact.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Direct / Battery = |
| Description |
This tube was designed in 1924 with an 8 ohm resistor connected in series with the filament, wound in a special flanged section of the lower part of the base. This allowed the tube to be operated on either 2, 4 or 6 volts. Late in 1924 the type number was changed to WR1.
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| Information source |
-- Original prospect or advert Wireless Constructor Nov 1924, p.28
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A_Cossor: Fin Stewart
Fin Stewart
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Just Qvigstad
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