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ID = 55995
United States of America (USA)
Brand: Arcturus Radio Tube Co.; Newark, NJ
Developer: Arcturus Radio Tube Co.; Newark, NJ 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to 32_Arcturus = AC-32
First Source (s)
Nov.1927 : Saga of the Vacuum Tube, Tyne

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

Very rare tube with amber glass. the article by Bill Condon in the Museum files states that an amber glass Arcturus type 32 exists. Provenance of the tube from 1969 indicates that it is the tube referred to in the article. None of the literature listed below mentions amber glass Arcturus tubes. Photo of this tube now in Museum and full provenance is known. This tube was a high gain type intended for scanning disk televisions and resistance coupled amplifiers. 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 180 x 44 mm / x 7.09 x 1.73 inch
Weight 32 g / 1.13 oz
Information source Radio News
32_Arcturus: Fin Stewart collection
Fin Stewart

32_Arcturus: Fin Stewart
Fin Stewart


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