Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 3958
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 7W7 = 1282 = CV902
Similar Tubes
Different connections:
Other base and data slightly different:
First Source (s)
07.Nov.1941 : Electron Tube Registration List
Predecessor Tubes 6AB7  
Successor Tubes 6CB6   14W7   6AU6  

Base Loctal-8, B8G (Sylvania, 1938) (Codex=Wk)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.45 Ampere / Indirect / Specified voltage AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  7W7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
Geri Meier

More ...
7W7: Telefunken Werkstattbuch
Wolfgang Bauer

More ...
7W7: Sylvania Technical Manual
Peter Hoddow

More ...

from Just Qvigstad

Usage in Models 4= 1946? ; 11= 1946 ; 8= 1947? ; 13= 1947 ; 1= 1948?? ; 4= 1948? ; 11= 1948 ; 1= 1950?? ; 2= 1950?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):55

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]