Antique radios, Old Time Radios
WR21A
|
Country:
United States of America (USA)
|
|
| Identical to |
WR21A
= WR21
|
| Similar
Tubes |
Normally replaceable-slightly different:
WR21D
|
| First Source
(s) |
1920 : Antique Radio Classified L.A.Peckham, 1991
1922 : Saga of the Vacuum Tube, Tyne page 310+312
|
| Production stop |
Sep.1922 |
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.8 Ampere / Direct / Battery = |
| Description |
Aeriola WR21A. Initially for the Westinghouse DR (1921). Later for the Aeriola Grand receiver of July 1922. The only known Radiola Grand can be seen in the Ford Museum (Douglas). The manufacturing of this tube was discontinued already in September 1922. Needs a ballast tube WB800. Two versions existed: The WR21A (for Amplifier) clear glass tip, and the WR21D (for Detector) with green lacquer tip.
This tube is fitted with a base made by the Shaw Insulator Company and was surplus stock when the Westinghouse company bought Moorhead Laboratories inventory in 1920
Text in other
languages (may
differ)
|
|
WR21A: Fin Stewart
Fin Stewart
|
Just Qvigstad
|
|
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
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 |
|
|
|
