(!!!!) (Recommended Pair) 6JB6A RCA NOS 1970 era (62ma and 66ma) (DRAKE)
(!!!) (Recommended PAIR) 6JB6A RCA NOS 1970 era same build (74ma and 80ma) (DRAKE)
(!!) (Recommended Pair) 6JB6 RCA NOS 1960's (87ma and 94ma)
(!) (BEST SINGLE) 6JB6A RCA branded GE NOS 1964 (86ma)
6JB6 Sylvania branded RCA NOS 1970's (65ma)
6JB6 Sylvania branded RCA NOS 1970's (81ma)
6JB6 Sylvania used/good (73ma)
6JB6A GE NOS (61ma)
6JB6A RCA used/good faded printing (63ma)
