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

44

Information - Help 
ID = 2675
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 44 = 144
Similar Tubes
Normally replaceable-slightly different:
  39 ; 39/44
First Source (s)
Apr.1932 : 70 Years of Radiotubes and V.
Successor Tubes 39/44  
Base UY-Base, 5 Pins (USA, April 1927) (Codex=Hfo) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Dimensions (WHD)
incl. pins / tip		 x 113 x 39 mm / x 4.45 x 1.54 inch
Weight 39 g / 1.38 oz
Tube prices 1 Tube prices (visible for members only)
Information source -- Collector info (Sammler)   
Taschenbuch zum Röhren-Codex 1948/49   
44_so.png 44: ARRL Handbook 1972
Anonymous 10 Collector
More ...
Just Qvigstad 		44_characteristics.png
44: My schematic collection.
Pier Antonio Aluffi
Usage in Models 2= 1932? ; 62= 1932 ; 1= 1933?? ; 11= 1933? ; 46= 1933 ; 4= 1934?? ; 4= 1934? ; 21= 1934 ; 10= 1935?? ; 9= 1935? ; 12= 1935 ; 2= 1936?? ; 4= 1936? ; 1= 1936 ; 1= 1937?? ; 1= 1950
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):191

Collection of

Robert Sarbell † 22.3.22 (USA)
Bruce Morgenstern (CDN)
George Papaiz (CDN)
Michael Gnaedig-Fischer (MEX)
 
44_cornell_rmf.jpg

44
 
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]
  
Data Compliance More Information