Need some input from the experts out there. I took my DC3 in to be serviced and will probably have to replace the el-84s. I told the tech I would probably replace them with JJ Tesla tubes. Since he's a die hard GT fanatic he looked at me like I had !*%# for brains and told they were cheap Japanese junk. I purchased my last set of preamp/power tubes from Mr. Pletka at Eurotubes and was under the impression that they were being made in the old Tesla factory and came highly recommended from other web sites I have visited. What gives?