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ID = 3673
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Arcturus Radio Tube Co.; Newark, NJ 
Tube type:  Double Diode-Triode   Detector 
Identical to 6B6
Similar Tubes
Other shape (e.g. bulb type):
  6B6G ; 6B6M
Different connections:
  6SQ7GT ; 6SQ7GTY
Other base:
First Source (s)
17.Sep.1935 : Electron Tube Registration List
Predecessor Tubes 75  
Successor Tubes 6SQ7   6SQ7GT  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AC/DC

The tube "Union 6B6" shown in the picture seems to be a fake, as a 6Q7GT was simply overstamped. As well the suffix "GT", which is applicable for this design, was omitted.

According to the nomenclature, an octal tube 6B6 without a suffix as -G, -GT, etc. would presume a metal version of this tube, which apparently does not exist, just see under 6B6G or 6B6M.

Text in other languages (may differ)
Information source - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   

6B6: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector

337.png 6B6: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
6B6: elektron taschenbuch 1952
Heinz Höger

Usage in Models 1= 1935?? ; 3= 1935 ; 3= 1936? ; 2= 1936 ; 1= 1937? ; 1= 1938?? ; 1= 1938 ; 1= 1939?? ; 3= 1940 ; 4= 1941? ; 1= 1941 ; 1= 1945?? ; 1= 1945 ; 1= 1946 ; 1= 1950?? ; 1= 1959

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):26

Collection of



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