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R208-A

Information - Help 
ID = 77612
       
Country:
Canada
Brand: Northern Electric Co. Ltd.; Canada
Developer: Western Electric Company Inc.; New York (NY) 
Tube type:  Triode, vacuum   Power/Output 
Identical to R208-A = 4101D = SY4101D = 101D = VT8_GPO = 208A
Similar Tubes
Normally replaceable-slightly different:
  101DW

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Telephony
Filament Vf 4 Volts / If 1 Ampere / Direct / Parallel, (AC/DC)
Description First tube made by Northern Electric (Canada). Used in telephone repeaters. 
Dimensions (WHD)
incl. pins / tip
x 109 x 59 mm / x 4.29 x 2.32 inch
Weight 58 g / 2.05 oz
 

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