Antique radios, Old Time Radios

WR1

Country:	Great Britain (UK)		Brand:	Cossor, A.C.; London
			Tube type:	Triode, vacuum Audio Frequency

Tube ID = 28917

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Identical to	WR1
Similar Tubes	Other characteristic (electr. data): WR2 Heater different: W1_Cossor
First year	May.1925 Saga of the Vacuumtube, Tyne page 375, 376
First Source (s)	1925 : British Radio Valves - The Vintage Years, Thrower p.49

Base	Europe 4-Pin (A, 4A, B4, since 1914)
Filament	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.
Literature	Saga of the Vacuumtube, Tyne 1925 Brown Brothers Catalog 217

WR1: federico rubio
Federico Rubio-Moratalla

WR1: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

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]