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Pyramid-1

Information - Help 
ID = 44360
       
Country:
Great Britain (UK)
Brand: Radions Ltd., Radion Works; Bollington
Tube type:  Triode, vacuum 
Identical to Pyramid-1
Similar Tubes
Heater different:
  Pyramid-2
First year Sep.1925 The Wireless World, London (WW, 79) Company Advertisement

Filament Vf 5.5 Volts / If 0.34 Ampere / Direct
Literature -- Collector info (Sammler)   Banneitz, TB der drahtl. Telephonie u.Telegr. 1927
The Wireless World, London (WW, 79)   September 1925
 
pyramid1_spec.png
Pyramid-1: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector


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