(!!!!!) (Best Overall Quad) 10Y=VT-25 SYLVANIA NOS 1940's (28, 28, 28, 28.8ma) 1-3% matched
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's (25.0ma and 25.6ma) 1-3% matched (same Gm)
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's (25.2ma and 26.2ma)
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's branded National 1962 (25.8ma and 26.4ma) 1-3% matched (same Gm)
(!!!!) (Best RCA Pair) VT-229=6SL7GT RCA round black plates NOS 1942 (2.8/2.9ma and 2.5/2.6ma)
(!!!) (Best Pair) 826 Ken Rad NOS 1942 same date codes original boxes strong emission
(!!!) (Best Value Pair) 211=VT-4-C GE low hours/test like new - getters like new - 1942-1945 (105.5ma and 107ma)
(!!) (Recommnded Pair) 826 Ken Rad NOS 1942-1943 (1 pair)
102D Western Electric NOS 1954 large getter (0.7ma Gm=600)