(!!!!!) (2nd Best Pair) 6F6G Marconi Spain NOS 1940's (33.2ma and 34.2ma)
(!!!!!) (Best Overall Pair) 6F6G Marconi Spain NOS 1940's (33.2ma and 34.2ma) 1-2% matched
(!!!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.7/1.7/1.7/1.7ma) 1-2% matched
(!!!!) (Recommended Pair) 6F6G Marconi Spain NOS 1940's (37.5ma and 39ma)
(!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.5/1.5/1.5/1.5ma) 1-2% matched
(!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.6/1.6/1.6/1.5ma) 1-2% matched
(!!!) (Recommended PAIR 1953) JAN-CW-231D Western Electric NOS 1953 (1.5ma and 1.5ma)
(!!!) (Recommended PAIR 1953) JAN-CW-231D Western Electric NOS 1953 (1.8ma and 1.8ma)
(!!!) 80 RCA Victor NOS 1948 (56/40 and 58/40)
(!!) 6E5 RCA NOS 1940's (2 in stock)
(!!) 6E5 Sylvania NOS (2 in stock)
(!!) 6V6GT Philco by Sylvania tests like new 1957 (42.2ma)
(!) (#1 231D Best Value Pair) 231D Western Electric NOS 1953 (1.8/1.8ma)
(!) (#1 231D Best Value Pair) 231D Western Electric NOS 1954 (1.6/1.6ma)
(!) (#2 231D Best Value Pair) 231D Western Electric NOS 1953 (1.7/1.7ma)
(Best Value) 5V4G RCA black plates used/very good 1948 (54/40 and 57/40)
(slightly microphonic) 6SN7GT Hytron NOS 1948 (7/8ma)
231D Western Electric NOS 1953 (1.6ma)
5691 RCA Red Base Black Plates used 1948 (2.2/2.4ma) (Gm=62% and 75%)
6B7 Raytheon NOS 1950 era (2 in stock)
