Antique radios, Old Time Radios
WB800
Country:
United States of America (USA)
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Identical to |
WB800
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First year |
1922
Saga of the Vacuum Tube, Tyne page 312
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Was used by |
Radio/TV-reception etc. |
Filament |
If 0.8 Ampere / Direct / Battery = |
Description |
Was designed as a ballast tube for the WR21 in the radio Aeriola Grand. It was necessary for this tube to insure that the rated filament current was not exceeded when power was supplied from a 6 volt storage battery.It is fitted with a B4 base but has only the filament pins. Each WR21 tube in the set had a WB800 ballast tube It was discontinued in September 1922..
Text in other
languages (may
differ)
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Information source |
Saga of the Vacuum Tube, Tyne Page 312
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WB800: Ebay item February 2020
Fin Stewart
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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