radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

WR1

Information - Help 
ID = 28917
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Cossor, A.C.; London 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to WR1
Similar Tubes
Other characteristic (electr. data):
  WR2
Heater different:
  W1_Cossor
First year May.1925 Saga of the Vacuum Tube, Tyne page 375, 376
First Source (s)
1925 : British Radio Valves - The Vintage Years: 1904-1925 p.49
Predecessor Tubes A_Cossor  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.3 Ampere
Description

Corresponds to W1. An 8 ohm series resistor allowes to operate from 4 to 6 volt supply; if shortened by a thumbscrew the tube could be used with 2 volt L.T.

 
Information source Saga of the Vacuum Tube, Tyne   1925 Brown Brothers Catalog 217

b4_base_pins~~195.png WR1: Fin Stewart
Fin Stewart


Just Qvigstad
wr1_spec.png
WR1: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

More ...

Collection of

 
wr1.jpg

 

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