Antique radios, Old Time Radios
4D21A
|
Country:
United States of America (USA)
|
|
| Identical to |
4D21A
|
| Similar
Tubes |
Different maximum ratings:
4D21
|
| Base |
Giant 5 pin medium shell B5D
Top contact with a cap.
|
| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 5 Volts / If 6 Ampere / Direct |
| Description |
Output 175 w.
|
Dimensions (WHD)
incl. pins / tip |
x 124 x 62 mm / x 4.88 x 2.44 inch |
| Information source |
Tube Lore (II) p. 87
|
|
|
|
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 |
|
|
|
