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KR20

Information - Help 
ID = 18317
       
Country:
United States of America (USA)
Brand: Ken-Rad, The Kentucky Radio Corporation; Owensboro, KY
Tube type:  Wunderlich Tube   Detector 
Identical to KR20 = 90_Wunderlich
Similar Tubes
Other characteristic (electr. data):
  29_Wunderlich ; WunderlichA_6pin
Other base and data slightly different:
  WunderlichA_5pin
First Source (s)
Aug.1932 : 70 Years of Radiotubes and V.

Base 6-Pin-Base U6A, old, USA (Codex=K)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
Description A triode with two equal grids and a single plate. Used as a full wave detector (am) with additional LF-amplification. 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 103 x 38 mm / x 4.06 x 1.50 inch
Weight 40 g / 1.41 oz
Literature Babani, International Radio Tube Encyclopaedia   Page 114
 
tubesockel_klein_wa6p_3.png
KR20: W.H.
Wolfgang Holtmann

 

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