Antique radios, Old Time Radios
PL-4D21
|
Country:
United States of America (USA)
|
|
| Identical to |
PL-4D21
= 4D21
= 4-125A
|
| Similar
Tubes |
Other characteristic (electr. data):
PL-4D21A
|
| Base |
Giant 5 pin medium shell B5D
Top contact with a cap.
|
| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 5 Volts / If 6.5 Ampere / Direct |
| Description |
This is just the 4D21 with the prefix of the manufacturer, PL = Penta Labs
Output watts increased from 125 to 175
|
Dimensions (WHD)
incl. pins / tip |
x 124 x 62 mm / x 4.88 x 2.44 inch |
| Information source |
- - Manufacturers Literature Catalog October 1963
Tube Lore (II) p. 87
|
|
PL-4D21: ARRL Handbook 1972
Anonymous 10 Collector
|
Just Qvigstad
|
PL-4D21: Manufacturer's Literature
Anonymous 15 Collector
|
Collection of
|
|
|
|
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 |
|
|
|
