Has anyone had experience with J&J tubes? I noticed that the horizontal on my Sylvania was starting to drift out of alignment so I decided to check the tubes in that section. When I plugged the JJ ECC-82 into my tube tester one set of filaments lit up like a light bulb briefly. The other side was fine. I thought I made a mistake in the settings, but I doubled checked and also checked the voltage at the socket and everything was fine. It would also make sense that the problem I was having was due to this tube.
http://www.jj-electronic.com/pdf/ECC%2082.pdf They're made in the Slovak Republic.
They look really well made, but I'm leary of getting more as replacements.
John