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UX-199_code9

Information - Help 
ID = 25444
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  LOCKED OFF TUBE (CODE 9) - see in Notes 
Identical to UX-199_code9 = CX299 = X99 = UX99 = UX199 = 99 = B_CommontypeUSA_Trio
Similar Tubes
Other characteristic (electr. data):
  231D
Other base:
  C299 ; UV99
First year Apr.1925 Saga of the Vacuumtube, Tyne page 314
Production stop 1931

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Filament Vf 3 Volts / If 0.06 Ampere
Description Direct heated 3,3-V-Triode for dry batteries: UX199 = CX299 = X99. Nickel-plated contact pins were introduced in 1927 [Tyne 314]. 
Text in other languages (may differ)
Literature -- Collector info (Sammler)   
Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia
 
ux199.jpg
UX-199_code9: KoBi
Konrad Birkner † 12.08.2014

 
ux199~~4.gif
UX-199_code9: KoBi
Konrad Birkner † 12.08.2014

 


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