Scooped by ZFA. Don't worry about that. I'll figure something out when I get some time here in the next month or two. Okay but I'm probably in the group who can't tell any difference. How many of us are running clip leads in basically permanent connections? Too easy & I'm lazy. I wonder if all the Chinese tube failures can be attributed to wrong orientation of the electrodes with regard to the base pins? Maybe they'd work okay if this aspect had been done correctly. I just rotated a pair of 3-400s out of my 75 m. rig and put a practically NOS pair in. The Eimac label and type silk screen on one envelope faces the show off viewing window while the other one faces to the back of the rig. They work fine and the labeling has nothing to do with electronics but evidently Eimac didn't pay much attention to where they printed the type no. on the envelope.