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225A

Information - Help 
ID = 75132
       
Country:
United States of America (USA)
Brand: Sonatron Tube Company; Chicago and New York
Developer: Sonatron Tube Company; Chicago and New York 
Tube type:  Triode, vacuum   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to 225A = 401_McCullough
Similar Tubes
Other base:
  X225A

Base UX-Base (4 Pins (2 thick, USA 1924, UX) 2 Sidecontacts.
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 1 Ampere / Indirect / Specified voltage AND current AC/DC
Dimensions (WHD)
incl. pins / tip
x 137 x 54 mm / x 5.39 x 2.13 inch
Information source - - Manufacturers Literature   

usa_401_kellogg_sockel_1~~1.png 225A: O.F.
Otto Frosinn


Just Qvigstad
sonatron_225a.gif
225A: own collection
Peter den Boer

Collection of

 
sonatron_225a_sidepin_tube1_small.jpg

225A
 

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