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ID = 57538
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Ionisation or Vacuum Gauge 
Identical to 29D2

Base Wires
Filament Vf 6 Volts / If 1.3 Ampere / Direct
Dimensions (WHD)
incl. pins / tip
x x 52 mm / x x 2.05 inch
Weight 100 g / 3.53 oz
Information source - - Manufacturers Literature   Ediswan and Mazda data sheets, August 1948

29D2: own collection
Peter den Boer



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