Antique radios, Old Time Radios
Multi-electrode
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Country:
United States of America (USA)
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| Identical to |
Multi-electrode
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| Base |
WD-base
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 1.5 Volts / If 0.25 Ampere / Direct / Battery = |
| Description |
This multi electrode tube was designed by Westinghouse as a four element type. It has a WD11 type base. No informatuion is available that it was sold commercially and it was only an experimental typeFrank Conrad of Westinghouse applied for a patent on the tube on September 27th, 1924 and patent no 1,709,659 was granted on April 16th, 1929. The four grids were connected in a series-parallel arrangement.
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| Information source |
-- Collector info (Sammler) AWA Tube Fact Sheet Vol 5, No 1, January 1980
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Just Qvigstad
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Multi-electrode: Bill Condon collection with permission from Mrs V Condon
Fin Stewart
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