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99

Information - Help 
ID = 6377
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Triode, vacuum   Universal 
Identical to 99 = UX99 = UX199 = UX-199_code9 = 99UX = B_CommontypeUSA_Trio = CX299 = 99X
Similar Tubes
Normally replaceable-slightly different:
  C_US-triode
Other base:
  C299 ; UV99 ; V99
Predecessor Tubes V99   C299   UV99   UV-199_Japan  

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Filament Vf 3 Volts / If 0.06 Ampere / Direct / Battery = /
Literature Taschenbuch zum Röhren-Codex 1948/49   

 
99wards_1_klein.jpg
99
Geri Meier

 
171_18.png
99: Telefunken Werkstattbuch
Wolfgang Bauer

 

Usage in Models 1= 1923 ; 3= 1927 ; 2= 1928 ; 1= 1930?? ; 1= 1931?
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8

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