(!!!!) (Recommended Pair) 7199 RCA black plates NOS 1960's (12/6.6ma and 13.2/7.0ma)
(!!!!) (Recommended Single) 7199 RCA black plates NOS 1960's (19.5ma pentode / 8ma triode)
(!!!) (Best Pair) 7199 RCA Black Plates NOS 1960's (14/7.2ma and 14/8.2ma)
(!!!) (Single) 7199 RCA Black Plates NOS 1964 (10.2ma pentode, 12ma triode)
(!!!) (Single) 7199 RCA Black Plates NOS 1970 era (10.6/8.6ma)
(!!) (Best Pair) 6AV5GA Sylvania NOS 1960's same build (1) branded Silvertone (58.5ma and 60ma)
(!!) (Best Value Single) 7199 Sylvania branded GE NOS 1966 (10ma/8.6ma)
(!!) (Recommended Pair) 6AV5GA GE NOS 1960's same build (1) CBS (1) Admiral (50ma and 55ma)
(!!) (Recommended Pair) 6AV5GA GE NOS 1968 (45ma and 50ma)
(!!) 7199 RCA Black Plates NOS around 1960 era (9/7.8ma)
6AV5GA GE NOS 1957 (67ma)
6AV5GA Sylvania NOS 1960's (78.4ma)
6AV5GT Sylvania NOS (0 in stock)
8417 Sylvania used/good 1970's (125ma)
