radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

CV3998

Information - Help 
ID = 27862
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Vacuum Pentode   clamp grid   Universal 
Identical to CV3998 = E180F = 5A/170K

Base Noval, B9A
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel, (AC/DC)
Description Special Quality Valve. RF Pentode with gm of 16.5. Triode connected, it achieves gm of 21mA/V.
Specied by UK's General Post Office. 
Literature -- Original-techn. papers.   
 
cv3998_mullard.jpg
CV3998: Private collection
Emilio Ciardiello

 
cv3998_so.png
CV3998: rtt
Michael Schlör

 


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