Antique radios, Old Time Radios
DL15_deForest
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Country:
United States of America (USA)
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| Identical to |
DL15_deForest
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| Similar
Tubes |
Normally replaceable-slightly different:
UX200A
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| First year |
1927
??
Saga of the Vacuum Tube, Tyne Seite 301
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 0.25 Ampere / Direct / Battery = |
| Description |
Plate voltage 45. This tube had an alkali gettering on the inside of the glass bulb. This could have been cesium. The grid was connected to the filament. The tube was fitted with an "Isolantite" base (a type of ceramic). First made 1927, it was discontinued in 1928.
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Dimensions (WHD)
incl. pins / tip |
34 x 107 x mm / 1.34 x 4.21 x inch |
| Information source |
Saga of the Vacuum Tube, Tyne Pages 301 @ 302
-- Collector info (Sammler)
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DL15_deForest: Fin Stewart
Fin Stewart
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Just Qvigstad
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Collection of
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