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235

Information - Help 
ID = 2655
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
  Ca. 1925 up to 1945 rare.
Identical to 235 = 35 = 35/51 = 435 = F235 = UY235 = ER235 = MY235 = PU035 = SY235 = C335 = MX235 = T-51 = NU-35-51 = T-35 = RYB235
Similar Tubes
Normally replaceable-slightly different:
  235/C ; ER551 ; RYB551
Differences not known by us:
  235A
Successor Tubes NY235  

Base UY-Base, 5 Pins (USA, April 1927) (Codex=Ha) Top contact with a cap
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.7 Ampere / Indirect / Parallel, (AC/DC)
Description The 235 was originally developed by RCA and announced in March 1931. It was designed for use in RF and IF stages of a/c radios. The earliest RCA tubes have a conical grid. 
Dimensions (WHD)
incl. pins / tip
45 x 123 x mm / 1.77 x 4.84 x inch
Weight 50 g / 1.76 oz
Tube prices 1 Tube prices (visible for members only)
Information source -- Collector info (Sammler)   
Taschenbuch zum Röhren-Codex 1948/49   
  235_sch.png
  235: Allied Radio Corp.
Günter Kudicke
 
235_a.jpg
235: scc
Christian Schaufelberger

 
s_225_g_5.gif
235: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
rca235.png
235: Electronics, April 1931
Achim Dassow


Usage in Models 1= 1929? ; 4= 1930? ; 1= 1930 ; 4= 1931?? ; 12= 1931? ; 40= 1931 ; 3= 1932?? ; 13= 1932? ; 108= 1932 ; 4= 1933?? ; 3= 1933? ; 3= 1933 ; 5= 1934?? ; 1= 1935? ; 1= 1939?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):203


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