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

7721

Information - Help 
ID = 6203
       
 
   
Tube type:  Vacuum Pentode 
Identical to 7721 = D3a
Similar Tubes
Other characteristic (electr. data):
  7722 ; E280F

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.32 Ampere / Indirect
Information source Essential Characteristics, GE 1973   

7721_sock.png 7721: Telefunken Taschenbuch 1971
Anonymous 15 Collector

More ...

Just Qvigstad
7721_spec.png
7721: Telefunken Taschenbuch 1971
Anonymous 15 Collector

 

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