radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.
Information - Help 

7A7E

Country:  United States of America (USA)      Brand:  Philco, Philadelphia Stg. Batt. Co.; USA 
  Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Tube ID = 25405
  previous  |  next
Identical to 7A7E = 7A7
First Source (s) 09.Dec.1938 : -- Collector info (Sammler)

Base Loctal-8, B8G (Sylvania, 1938)
Filament Vf 6.3 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel / series AC/DC /
Description at Philco only 
Text in other languages (may differ)
Literature

7a7e_top.jpg
7A7E: From my collection
Júlio Branco

 
7a7e_so.png
7A7E: ARRL Handbook 1972
Michael Schlör

 
Usage in Models   1= 1940?? ; 1= 1946
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   2

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