From: flegal@domaine.tld.invalid   
      
   On Wed, 01 Sep 2010 19:44:29 +0100, Richard  wrote:   
      
   >What will an audiophile like to know so he can have a good idea what he   
   >or she would be buying? I want to describe the items so a buyer knows   
   >the state of the tubes.   
      
   Full test :   
   Shorts (none whatsoever), gas, grid emission, leakage (at least 500K and   
   preferably more than 2M between all elements).   
   Transconductance and current (nominal is 11.5 mA/V and 140 mA @ 250V platye   
   and -15V grid), another set of measurements @500V, a must with big bottles.   
   End of life tests, same as above but with reduced heater voltage (6.3V   
   nominal, 5.5V or so for EOL), transconductance and current should be at   
   least 95% of nominal.   
      
   Plus a full description. Add some nice hi rez pics showing the tubes as well   
   as close-ups of the getters.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)