Antique radios, Old Time Radios
422A_deForest
|
Country:
United States of America (USA)
|
|
Brand:
|
|
| Tube type: |
Screen-grid Tetrode Audio Frequency |
| |
Ca. 1925 up to 1945 rare. |
|
| Identical to |
422A_deForest
|
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
Top contact with a cap.
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 3.3 Volts / If 0.6 Ampere / Direct / Battery = |
Dimensions (WHD)
incl. pins / tip |
45 x 123 x mm / 1.77 x 4.84 x inch |
| Weight |
50 g / 1.76 oz |
| Information source |
70 Years of Radiotubes and V. Page 166
|
|
422A_deForest: Fin Stewart
Fin Stewart
|
Just Qvigstad
|
|
|
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
