Hello, here is a pair of Elrog 845 output tubes. Came from working amp. I have no way of testing. I know they work,but the numbers I do not know. Kind of a hard tube to test. So with that being said, as I do know they work... I'm offering these at a great price. new these go for $1700-$1800. I have no use for them as I do not have the amps these came out of. So I'm just hoping to get some $$$ for them. What are they worth to you..??? Not being able to test, I am unable to offer any guarantees other than to say they do fire up and glow nice. Offers please.THX!!!