(!!) (BEST PAIR) 6DQ6B GE branded Zenith NOS 1972 (72.7ma and 74ma)
(!!) (BEST PAIR) 6DQ6B Sylvania NOS 1960's same build (78ma and 80ma)
6DQ6A Super Radiotron Australia NOS (69ma)
6DQ6B Curtis Mathes hi-fi JAPAN used/good 1960's (60.5ma)
6DQ6B GE Amperex NOS 1972 (84ma)
6DQ6B GE Amperex NOS 1972 (94ma)
6DQ6B GE branded Amperex NOS/77% 1970 (58ma)
6DQ6B JAPAN NOS 1960's (64.5ma)
6DQ6B Raytheon JAPAN like new 1960's (60ma)
6DQ6B Sylvania branded RCA NOS (54ma)