I just wanted to check with you all, before I make a big mistake, because you guys know more about this than I do. I have a Sorado head and I know it is the same as a 200S, it has 6550 power tubes in it and the schematic shows 6550. Can I safely put KT-88 tubes in place of the 6550 tubes without doing anything except rebiasing the amp. What is the main difference between the two tubes. I have heard that the KT-88 tubes are a little more agressive and put out a little more power.
Thanks,
Zulu