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B-201A

Information - Help 
ID = 71577
       
Country:
United States of America (USA)
Brand:
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to B-201A = UV201A = C301A

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.25 Ampere / Direct / Battery =
Description

This tube has "daylight blue"glass. Some Bluetron tubes have a gold coloured paper label on the side and some the word Bluetron stamped on the top of the bulb.

 
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 47 g / 1.66 oz
Literature -- Collector info (Sammler)   
 
beacon_b_201_a_tube_e918.jpg
B-201A: Ebay item September 2018
Fin Stewart

 
uxsockel_11~~57.png
B-201A: Fin Stewart
Fin Stewart

 


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