zincman
Active Member
I have an read that 6973 tubes can be substituted with 6cz5 tubes. My question is I know the 6cz5 has to be jumped to work but since the plate voltages are different will the 6cz5 overheat? Is there other subs to use? I have found the 6cz5 has several subs to it, would it be safe to try them? Thanks in advance
Tim
Tim