I have just picked up an old USA Tung Sol 6L6G (haven't had time to try it yet) Can't find much on the net in regards to this tube, I will be putting it in a VHT Special 6 Ultra combo. Currently running a Slyvania 6V6 in the amp but keen to try some other tubes to see how they sound. Anyone had experience with 6L6G tubes? Can you explain how they sound compared to a 6L6GC? I assume the old USA Tung Sol should be pretty decent based on their reputation but who knows....old tubes are a bit of a gamble!