View Single Post
  #3   Report Post  
maxxtro
 
Posts: n/a
Default

Alan Douglas adouglasatgis.net wrote in message . ..

Sounds as if your EL34 has grid emission, and it takes a few
minutes for the grid to heat up. It is contaminated with material
from the cathode.

Alan


Hi:
The means the Mullard el34 tube is bad can not work on the Amp?
Thanks!