(!!!) (2nd Best Mullard Single) 7247=12DW7 Hammond Mullard ribbed plates like new 1964 (1.0ma and 11.8ma)
(!!) (BEST VALUE) GZ34 Mullard rebranded Sylvania used/like new 1969 (58/40 and 60/40)
7591 Fisher Westinghouse used/good/75% 1963 (43.5ma, Gm=7450)
7591 Westinghouse branded RCA NOS 1963 (51.5ma, Gm=9050)
