Antique radios, Old Time Radios
440
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 0.25 Ampere / Direct / Battery = |
| Description |
The amplification factor of this tube was 30 - four times that of the UX201A. It was specifically desigbed for resistance-capacitance coupled amplification. a 250000 ohm coupling resistor was used in the anode circuit of the tube.
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Dimensions (WHD)
incl. pins / tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Weight |
47 g / 1.66 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Saga of the Vacuum Tube, Tyne Pages 317 & 318
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440: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
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