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GP

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ID = 28580
       
Country:
Great Britain (UK)
Brand: Radions Ltd., Radion Works; Bollington
Developer: Radions Ltd., Radion Works; Bollington 
Tube type:  Triode, vacuum   Universal 
  <1925 rare.
Identical to GP
First year 1926 Saga of the Vacuum Tube, Tyne page 393
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 0.5 Ampere / Direct / Battery =
Description

Bright emitter. Advertised in 1925 as low cost valve/tube at 7 shillings (0.35 GBP).

 
Dimensions (WHD)
incl. pins / tip		 54 x 130 x 27 mm / 2.13 x 5.12 x 1.06 inch
Weight 52 g / 1.83 oz
Information source Wireless World (The), London (WW, 79)   Radions Advertisement September 1925
British Radio Valves - The Classic Years: 1926-1946   P. 251 & 332; Supplement, p. 85
- - Manufacturers Literature
b4_base_pins~~316.png GP: Fin Stewart
Fin Stewart

Just Qvigstad 		gp_spec.png
GP: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

Collection of

Peter den Boer (NL)
 
gpradion.jpg

 
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