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171_Royal

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ID = 82797
       
Country:
United States of America (USA)
Brand: Royal Radio Tube Co. (Clara Quinn); Cleveland, OH
Tube type:  Triode, vacuum   Power/Output 
Identical to 171_Royal

Base SPECIAL TUBEBASE in general
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.25 Ampere / Direct / Battery =
Description

This tube used the repalceable filament invented by Clara Quinn. It consisted of a hairpin filament mounted on a removable section of the bakelite UX base.  See Manufacturers Page.

 
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 47 g / 1.66 oz
Information source -- Collector info (Sammler)   

 

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