Fender Blackface Super Reverb Tube Set, JJ Tubes (x2 6L6GC, x4 12AX7, x2 12AT7, x1 5AR4) (2)T-12AT7-JJ (4)T-12AX7-S-JJ (1)T-5AR4-JJ (1)T-6L6GC-JJ-MP (Apex Matched), which contains (2) T-6L6GC-JJ