Hi everyone, first post here, and it's not for me but for a friend. He has been a user of the above amp for many years and has the itch to roll the power tubes. He purchased a quad of KT-120's and now he wants to know if they can be used in his vintage MKIII and if they can be used what should the bias setting be?
Thanking you in advance,
Bill
Thanking you in advance,
Bill