(!!!) (2nd Best Mullard Single) 7247=12DW7 Hammond Mullard ribbed plates like new 1964 (1.0ma and 11.8ma)
(!!!) (Best Mullard Pair) 12DW7=7247 Mullard UK rebranded Magnovox and Bogen like new 1965-1971 (1.1ma/12ma and 1.3/11.5ma) (sweet sound)
(!!!) (BEST PAIR #2) 7247=12DW7 CBS gray ribbed plates NOS 1960 (0.9/9ma and 1.0/9ma)
(!!!) (BEST PAIR) 7247=12DW7 CBS gray ribbed plates NOS 1960 (1.0/10ma and 1.1/9.5ma)
(!!!) (Best Single) 12DW7=7247 CBS ribbed plates NOS 1960 (1.3ma/12.5ma)
(!!!) (Best Value Single) 12DW7=7247 Magnovox Mullard UK used/good 1963 (0.9ma/13.6ma)
(!!!) (Recommended Pair) 7247=12DW7 Mullard England rebranded Hammond and Bogen 1965-1970 (1.2/10ma and 1.1/10ma) (1-3% matched)
(!!!) 12DW7=7247 CBS ribbed plates NOS 1960 (0.9ma/11.4ma)
(!!) (Best Overall Single) 7247=12DW7 GE branded RCA NOS pinched plates 1970 (1.2ma and 14.5ma) (Highest Ma and Gm)
(!!) (Best Overall Single) 7247=12DW7 GE NOS 1970 (1.3ma and 13.6ma) (Highest Ma and Gm)
(!!) 7247=12DW7 GE branded Tungsol tall gray ribbed plates NOS 1960's (1.0ma and 10.4ma)
(!!) 7247=12DW7 GE branded Westinghouse "U" getter used/good early 1960's (0.7ma and 8.6ma)
(!) (Best Single) 7247=12DW7 Amperex Globe Logo by Matsushita Japan NOS 1967 similar sound to Mullard (1.5ma and 11.6ma) (High mA and Gm)
12DW7 Sylvania branded Tungsol NOS 1960's (1.3/9.2ma)
7247 GE NOS tall gray ribbed plates 1970's (1.1ma and 9.4ma)
7247=12DW7 EICO MULLARD UK used/good 1962 (0.7/9.2ma)
7247=12DW7 GE branded RCA used/good 1960's (0.8/9.3ma)
