The 6cg7 has a shield and it cant be a 6cg7 without the shield. The 6fq7 does not have the shield. The tube is the same otherwise. All of my tubes are marked 6cg7 or 6cg7/6fq7; so I dont have any pure 6fq7's to answer you. From my research the difference is debated. Some hear no difference while some insist the 6cg7 is better. I have not found anyone state they believe the 6fq7 is better in any of my reading. The important fact regarding the 6cg7 tube is that all of them I have tried are very good sounding tubes. I have tried the RCA clear top from Brazil std and cryo, GE JAN, GE std, Sylvania, Ei and EH (the only tube I dont like very well). I have some rayethon and golden dragon Chinese tubes I have yet to try.
post #31 of 162
5/19/04 at 10:08am