Antique radios, Old Time Radios
UX201A_switchtube
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Country:
United States of America (USA)
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Brand:
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| Tube type: |
Triode, vacuum Audio Frequency |
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| Identical to |
UX201A_switchtube
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| First Source
(s) |
Jul.1930 : Radio Craft
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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 / Direct / Battery = |
| Description |
This tube is a specially designed 201A type with two filaments and a switch adjacent to one filament pin. If one filament burns out, the switch can be operated so as to use the second filament, thus giving the tube "double life". Alternatively with the switch on and both filaments in use at the same time, the tube operates as either a 112 or 171 power tube.
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Dimensions (WHD)
incl. pins / tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Weight |
49 g / 1.73 oz |
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Just Qvigstad
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Collection of
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