radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

291_6pin

Information - Help 
ID = 9227
       
Country:
United States of America (USA)
Brand: Speed, Cable Radio Tube Corp. / Cable Supply Co.; New York and Brooklyn, NY
Developer: Speed, Cable Radio Tube Corp. / Cable Supply Co.; New York and Brooklyn, NY 
Tube type:  MULTI-SYSTEM, internal coupling   Power/Output 
Identical to 291_6pin
Similar Tubes
Heater different:
  293_6pin ; 295_6pin
Other base:
  291
Other base and other heater:
  293 ; 295

Base 6-Pin-Base U6A, old, USA (Codex=Ka) Top contact with a cap.
Filament Vf 12.6 Volts / If 0.3 Ampere / Half indirect / Specified voltage AC/DC
Description There is also a 5pin version, while the basing diagrams for the 6pin tube type here are somehow erroneous in different ways, the 5pin data in Babani appear conclusive and convincing. And the picture seen at the 295 shows a 5pin tube as well. 
Text in other languages (may differ)
Information source 70 Years of Radiotubes and V.   page 79
Röhren Taschenbuch, Bd. II, Leipzig   
 
s_239_g_1.gif
291_6pin: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

 

from Just Qvigstad

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]
  
rmXorg