(!!!) (Best Overall Pair) 6JS6C Sylvania Zenith and Sylvania NOS same build (104ma and 107ma)
(!!!) (Best Value Pair) 6KD6 GE NOS 1980-1981 (72ma and 76ma)
(!!!) (PAIR) 6146B RCA NOS 1968-1971 (93ma and 96.6ma)
(!!!) (PAIR) 6146B RCA NOS 1971-1973 (83ma and 87ma)
(!!!) (Recommended Pair) 6KD6 GE NOS 1970's same build (92ma and 91ma)
(!!!) 6KD6 Sylvania double plates NOS 1960's (98ma)
(!!) (Good Value Pair) 6KD6 GE NOS and used/like new 1967 and 1984 (88ma and 92ma)
(!!) (Recommended Pair) 6JS6C GE Realistic and GE NOS 1970's - 1981 (70ma and 76ma)
(!!) (Recommended Pair) 6KD6 Sylvania NOS and low hours/like new (82ma and 83ma)
(!!) 6146B Sylvania branded RTC NOS 1960's (94ma)
(!!) 6146W Sylvania NOS 1970's (105ma)
(!) (SINGLE) 6JS6C Sylvania Zenith NOS (75ma)
12BY7A Motorola by Sylvania NOS 1960's (21ma)
12BY7A RCA NOS 1966 (20ma)
12BY7A Sylvania branded RCA NOS (20ma)
6JS6A RCA NOS 1967 (92ma)
6JS6A Sylvania NOS (114ma)
6JS6B GE branded Zenith NOS (93ma)
6JS6C International Korea NOS 1970's (100ma)
6JS6C RCA NOS (72ma)