Tube Help--I'm trying to make sense of the codes on this tube.

Can one of the resident tube experts help me identify what I'm dealing with? The tube is 12AU7A ECC82 Amperex uniform Gf2 B5J2.

http://i288.photobucket.com/albums/ll179/jameshiller1/12AU7A ECC82_zpspwukqcei.jpg

Thanks all!

jbhiller02-23-2017 5:24pm

jbhiller OP Details Discussions Posts This discussion Message User 1,446 posts 02-24-2017 at 02:49am Copy Comment URL Report Comment Edit Delete @tomcy6 Your explanation was spot on. I cannot thank you enough. This is my first experience tube rolling. I really appreciate the education.
jbhiller OP Details Discussions Posts This discussion Message User 1,446 posts 02-23-2017 at 08:57pm Copy Comment URL Report Comment Edit Delete @tomcy6 , THANK YOU! Great deciphering of the codes! I hope these sound good! I wonder if quality dropped in the 70s due to the increasing popularity of solid state.
jbhiller OP Details Discussions Posts This discussion Message User 1,446 posts 02-24-2017 at 04:11am Copy Comment URL Report Comment Edit Delete @tomcy6 , if you lived near me I'd buy you a beer or a coffee! Thank you again. That is great information. I'm just running them in now. Very interesting difference as compared to the Chinese EL34s I had in before these.