From: mynamespacedbydots@xs4all.nl   
      
   I did not see any plate volt/current curves (with G1 voltage references)   
   in the docs I found, but if you look for them you should be able to find   
   them.   
      
   Here's a KT120 datasheet with Ia/Ua and Ia/Ug1 curves in pentode mode with   
   Ug2 reference . Also a Ia/Ua curve set in triode mode.   
   The published curves seem to originate from (an) individual tube(s) rather   
   than being nominal curves.   
   https://frank.pocnet.net/sheets/084/k/KT120.pdf   
      
   Gio   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)