(!!!!) (Recommended Pair) 417A Western Electric NOS 1980 (32ma and 34ma)
(!!!!) (Recommended Pair) 5842=417A Amperex "PQ" USA Nickel Pins "O" getter halo NOS 1985 (35ma and 37ma)
(!!!!) (Recommended Pair) 717A=JAN-CTL-VT-269 Tungsol NOS 1940's (9.4ma and 8.5ma)
(!!!!) (Recommended Quad) 403B=6AK5 Western Electric NOS "D" getter 1969 matched set of 4 (4.8, 4.9, 5.1, 5.2ma)
(!!!!) (Recommended Quad) 403B=6AK5 Western Electric NOS "D" getter 1969 matched set of 4 (6.3, 6.3, 6.4, 6.5ma)
(!!!!) (Recommended Quad) 403B=6AK5 Western Electric NOS "D" getter 1969 matched set of 4 (6.6, 6.7, 6.8, 6.8ma)
(!!!!) (Recommended Quad) 403B=6AK5 Western Electric NOS "D" getter 1969 matched set of 4 (6.9, 6.9, 7.1, 7.2ma)
(!!!!) (Recommended Single) 396A Western Electric NOS 1984 (8/6ma)
(!!!) (#1 286A) 286A Western Electric "top printing" NOS 1942-1945 (7.0ma)
(!!!) (#1 374A) 374A Western Electric black plate used/test like new 1960's (21-25ma) (11 in stock)
(!!!) (2nd Best Pair) 311B Amperex made in Russia NOS 1977 (31.8ma and 33.2ma) (very good construction)
(!!!) (3rd Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.6/2.0ma and 1.6/2.0ma) 1% matched
(!!!) (4th Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.7/1.8ma and 1.8/1.9ma)
(!!!) (Best Overall Pair) 286A Western Electric "top printing" mesh-plate NOS 1942-1945 (6.4ma and 6.6ma)
(!!!) (Best Overall Pair) 429A Western Electric NOS "D" getter halo (6126=1961)
(!!!) (Best Pair) 420A Western Electric NOS 1979 (1.6/1.9ma and 1.6/1.9ma)
(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.8/1.9ma and 1.8/2.0ma)
(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.9/2.1ma and 2.1/2.1ma)
(!!!) (Best Pair) JW-5842=417A Western Electric "D" getter low hours/like new 1950's (27.6ma and 30.5ma) (Best Sonics)
(!!!) (Best Single) 310A Western Electric large punch plate low hours/tests like new 1962 (6.5ma) (highest mA and Gm)