Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 30865
Great Britain (UK)
Brand: Radions Ltd., Radion Works; Bollington
Tube type:  Triode, vacuum   Detector 
Identical to D4_Radion
First Source (s)
1924 : British Radio Valves - The Vintage Years: 1904-1925 P. 59 &120

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.25 Ampere / Direct / Battery =
Information source History of the British Radio Valve to 1940   P. 6, 150 & 156
British Radio Valves - The Classic Years: 1926-1946   P. 251 & 332; Supplement p. 85

b4_base_pins~~312.png D4_Radion: Fin Stewart
Fin Stewart

Just Qvigstad
D4_Radion: 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]

Data Compliance More Information