For sale are a pair of Sylvania 6SN7GT, I collected these and no longer need them. I've used them recently for maybe 1 hour to make sure they work. When I bought them they tested 80/82 and 85/85 on a Hickok Tester. Date code is 152, which means manufactured in 1951 on the 52nd week.

Price includes Paypal G&S + Shipping.