(!!!!) (BEST PAIR) 6AK5 Western Electric NOS 1957-1958 (10.1/10.2ma)
(!!!!) (Recommended Pair) 403B Western Electric NOS "D" getter 1967-1969 (6.2/6.3ma)
(!!!!) (Recommended single) JTL-5654=6AK5W Tungsol NOS 1958 in WB (7.1ma)
(!!!!) 5654=6AK5W GE 5 Star NOS (7.2ma)
(!!!!) 6AK5 GE NOS 1964 (7.5ma)
(!!!!) 6AK5 GE NOS 1973 (10.2ma)
(!!!) (Best 403B Pair) 403B Western Electric NOS 1956-1957 "D" getter halo (6.5/6.8ma)
(!!!) (Best Pair) 6AK5=403A Western Electric NOS "D" getter halo 1957-1959 (7.7/8.0ma)
(!!!) (Best Single) 6AK5 Western Electric NOS 1956 (10.2ma) (Highest Ma and Gm)
(!!!) (Best Single) 6AK5 Western Electric NOS 1956 (9.7ma) (Highest Ma and Gm)
(!!!) (Recommended Pair) 6AK5 RCA gray plate NOS 1964-1970 (7.0/7.3ma)
(!!!) (Recommended Pair) JTL-6AK5 Tungsol gray plate "D" getter used/very good 1952 (6.3ma and 6.6ma)
(!!!) 6AK5 Raytheon USA gray plate NOS 1970 era (6.4ma and 7.2ma)
(!!) (1 set of 10 tubes) 403A=6AK5 Western Electric used/good D getter halo 1950-1959 (1 set of 10 tubes)
(!!) (Best Single) 403A Western Electric NOS "D" getter 1955 (7.1ma)
(!!) (Best Single) 6AK5 Western Electric NOS "D" getter 1958 (7.0ma)
(!!) (Best Single) 6AK5 Western Electric NOS 1956 (8.5ma)
(!!) (Best Single) 6AK5 Western Electric NOS 1959 (9.0ma)
(!!) (Best Single) JW-6AK5 Western Electric NOS D getter 1940's (10.2ma)
(!!) (Best Value) 6AK5=403A Western Electric used/good 1951 (5.5ma) Gm like new
