Antique radios, Old Time Radios
PT-222
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Country:
United States of America (USA)
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| Identical to |
PT-222
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| Similar
Tubes |
Normally replaceable-slightly different:
UX222
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
Top contact with a cap.
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| Was used by |
Industrial |
| Filament |
Vf 3.3 Volts / If 0.132 Ampere / Direct / Battery = |
| Description |
This tube was designed by GE as an industrial version of the UX222. It is described as Scr-grid Pliotron. 3.3 v fil.
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Dimensions (WHD)
incl. pins / tip |
x 123 x 45 mm / x 4.84 x 1.77 inch |
| Weight |
48 g / 1.69 oz |
| Information source |
- - Manufacturers Literature GE Vacuum Tube Designations 12/10/1930
Tube Lore (II) p. 214
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PT-222: Fin Stewart
Fin Stewart
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Just Qvigstad
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