(!!!!) (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 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) 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)
5693 RCA used good 1958 (2.4ma)
6C5 Ken Rad metal used/good 1940's (6.5ma)