Fender Bassman / Bandmaster Tube Set, JJ Tubes (x2 6L6GC, x3 12AX7, x1 12AT7) (1)T-12AT7-JJ (3)T-12AX7-S-JJ (1)T-6L6GC-JJ-MP (Apex Matched), which contains (2) T-6L6GC-JJ