(!!) 7199 RCA Black Plates NOS around 1960 era (9/7.8ma)
(!!) (2nd Best Pair) 7199 Sylvania NOS 1960's and 1985 same build (12.5ma/9.6ma and 12.3/10.2ma) 1-3% matched
(!!) (Good Value Single) 7199 Sylvania like new 1962 (11ma pentode, 8.5ma triode)
(!!!) (Best Pair) 7199 RCA Black Plates NOS 1960's (14/7.2ma and 14/8.2ma)
(!!) (Best Value Single) 7199 Sylvania branded GE NOS 1966 (10ma/8.6ma)
(!!) (Best Value SIngle) 7199 Sylvania NOS 1970 (15ma pentode/6.2ma triode)
(!!!!) (Recommended Pair) 7199 RCA black plates NOS 1960's (12/6.6ma and 13.2/7.0ma)
(!!!) (Single) 7199 RCA Black Plates NOS 1964 (10.2ma pentode, 12ma triode)
(!!!!) (Recommended Single) 7199 RCA black plates NOS 1960's (19.5ma pentode / 8ma triode)
(!!!) (Single) 7199 RCA Black Plates NOS 1970 era (10.6/8.6ma)
7199 RCA Black Plates NOS 1963 (10.4/7.6ma)
(!!) (Single) 7199 Sylvania NOS 1960's (11.8ma pentode, 7.8ma triode)
