have not read extensive posts on this subject. but i have talked to a lot of tube dealers and some equipment mfgs. an expert i am not! here are my findings.
gold dragons are just select current mfg tubes. rogue uses kt88s in their magnum upgrade that are supposed to be select and matched for him. 300$ per 8. mark states that these are much better than the svet or sovtek. he also stated that they had good success with electro harmonix 6550 "tun-sol like in sound".
tube dealers all seem to say best kt88 is nos m&o and best 6550 was tun-sol. during the years of there respective hay day. i am saving to buy some used tun-sols (that test good)and should last many many years to come. as all stated these were the best sounding of the bunch. good luck
gold dragons are just select current mfg tubes. rogue uses kt88s in their magnum upgrade that are supposed to be select and matched for him. 300$ per 8. mark states that these are much better than the svet or sovtek. he also stated that they had good success with electro harmonix 6550 "tun-sol like in sound".
tube dealers all seem to say best kt88 is nos m&o and best 6550 was tun-sol. during the years of there respective hay day. i am saving to buy some used tun-sols (that test good)and should last many many years to come. as all stated these were the best sounding of the bunch. good luck