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AC-31

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ID = 28391
       
Country:
United States of America (USA)
Brand: Arcturus Radio Tube Co.; Newark, NJ
Developer: Arcturus Radio Tube Co.; Newark, NJ 
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to AC-31 = 31_Arcturus
First year Nov.1927 Saga of the Vacuum Tube, Tyne Seite 342

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 15 Volts / If 0.35 Ampere / Half indirect / Specified voltage AC/DC
Description

The filament of this tube is carbon and it operates at 15 volts. This voltage was chosen by the manufacturer to make use of the availability of 15 volt AC transformers used in toy trains

 
Dimensions (WHD)
incl. pins / tip
x 123 x 45 mm / x 4.84 x 1.77 inch
Weight 49 g / 1.73 oz
Information source Saga of the Vacuum Tube, Tyne   p.342

ac_26_28_32_40_48_ra1_so1~~2.png AC-31: Fin Stewart
Fin Stewart


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