Genalex Gold Lion 12AX7 - different grades?

depends on who is doing the claiming and the selling

reputable and truly dedicated tube sellers will screen and test the tubes themselves, not just rely on the factory in china, whose work can often be inconsistent and suspect

and i hope you realize these golden lion tubes are NOT the original British tubes, these are China made copies, they just bought the brand name... absolutely nothing to do with the original genalex on which the brand and reputation was built

You are welcome @tommypenngotti

Seriously, If you have equipment from Manley Labs, you should contact them directly if you havent already because they have a very large supply of NOS tubes from the 50's 60's 70's. These will sound way better than any new reissued Gold Lion's (this is what all the sites sell). Otherwise try ANDY at Vintage Tube Audio in Michigan. (be prepared to wait a while its worth it) :-)

Matt M

ok thanks for the advice guys - 

The Gold Lion re-pops are made in Russia and their reliability- much better than the ____, coming out of China.          Ask any reputable tube monger, for the facts.      Still: +1, far as NOS valves and their sonics, over anything currently manufactured.