Antique radios, Old Time Radios
CW-931
| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
|
| Was used by |
Military and/or Government |
| Filament |
Vf 7 Volts / If 1.35 Ampere / Direct / Specified voltage AC/DC |
| Description |
This was developed by Western Electric in 1917 for The Signal Corps and used by the Navy under the CW-931 designation.. Rare earth coated filament. RF Output power 5W. Ua=300V. It was used in airplane and low power sustained-wave transmitters.
Originally produced with the bayonet locking pin turned at a 45 degree angle to other Western Electric tubes. Commonly referred to as the Signal Corps - Navy pin base.This was to prevent accidental use of low power tubes, causing burnout. You will find many tubes on the market today with the pins ground off, some being relocated to allow locking in to other sockets.
See Tyne's "Saga of the Vacuum Tube", page 287.
|
Dimensions (WHD)
incl. pins / tip |
x 83 x 54 mm / x 3.27 x 2.13 inch |
| Information source |
Saga of the Vacuum Tube, Tyne Page 100
-- Collector info (Sammler) Radio Test Lab, report, US Navy 3/2/1919
Tube Lore (II)
|
|
CW-931: nach Western Electric 1933
Robert Schmalstieg
More ...
|
Just Qvigstad
|
|
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 |
|
|
|
