(!!!!) (Best Overall Pair) 6L6G RCA black plate coated glass used/test like new 1944 (69.5ma and 71.2ma) (close Gm)
(!!!!) (Best Overall Pair) 6L6G=VT-115A RCA black plate coated glass NOS mid-1940's (81ma and 82.8ma) (rare) (same Gm)
(!!!) (Best Pair) 6C5 RCA / RCA Victor metal can NOS 1950-1951 (8.2ma and 8.8ma)
(!!!) (Best Value Black Plate single) 6L6GC RCA black plate used/good 1963 (59ma)
(!!!) (Best Value Black Plate single) 6L6GC RCA Conn black plate used/good 1962 (67ma) (Gm like new)
(!!!) (Pair) 6C5 Raytheon metal can NOS 1950 (7ma and 8ma)
(!!!) (SINGLE) JAN-CRC-5693 RCA used/like new 1958 (2.9ma)
(!!!) GL-5693 GE red can NOS 1954 (3.1ma)
(!!) (BEST PAIR) JAN-CRC-5693 RCA NOS 1961 (2.9ma/2.9ma)
(!!) (Best Single) JAN-5693 GE JAN Black Can NOS 1978 (3.0ma)
(!!) (Best Single) JAN-CRC-5693 RCA red can NOS 1961 (3.3ma) (Peluso, Gibson)
(!!) (Good Value Pair) 5693 RCA branded Raytheon and RCA used good 1953-1960 (2.6ma and 2.7ma)
(!!) (Single) 5693 RCA red can NOS 1977 (2.5ma) (Peluso, Gibson)
(!!) (Single) JAN-CRC-5693 RCA red can NOS 1961 (2.6ma) (Peluso, Gibson)
(!!) 5693 RCA red can NOS 1949 (2.9ma)
(!) (Recommended Single) 6EU7 RCA NOS 1970's (51/32 and 60/32)
(!) 5693 RCA NOS branded Amperex NOS (3.0ma)
5693 GE used/like new 1959 (2.9ma)
5693 RCA branded Raytheon used good 1960 (2.2ma)
5693 RCA branded Tungsol used good 1950's (2.6ma)