(!!!!) (Best RCA Single) 6L6GC Seeburg by RCA black plate tests like new 1965 (69ma)
(!!!!) (Good Value Single) 6L6GC Seeburg by RCA black plate used/good 1961 (66ma)
(!!!!) (Recommended Pair) 6L6GC RCA and RCA Simplex black plate used/good 1960's (61ma and 59ma) (same Gm)
(!!!) (Best Single) 6L6GC RCA Black Plate used/tests like new 1964 (88ma)
(!!!) (Good Value Single) 6L6GC RCA black plate NOS 1965 broken center guide pin (76.2ma)
(!) (Best Value Single) 6L6GC Sylvania NOS 1960's internals tilted (95ma)
(!) (Recommended Single) 5881=6L6WGB GE NOS 1960's (72.5ma)
(!) (Recommended Single) 6L6GC Sylvania NOS 1960's (63.5ma)
5881 International Japan black plate NOS 1960's (70ma)
6L6GC Sylvania clear top NOS 1960's copper grid posts (68ma)