(!!!) (Best RCA Pair) 5879 RCA branded GE NOS 1974 (2.2ma and 2.0ma)
(!!!) (Best Sylvania Pair) 5879 Sylvania branded RCA NOS 1970's (1.8ma and 1.8ma) 1-2% matched
(!!!) (Recommended Pair) 5879 Sylvania branded RCA NOS 1970's (1.6ma and 1.7ma)
5879 RCA triple mica "D" getter halo used/tests like new (1.7ma)
5879 RCA triple mica "D" getter halo used/tests like new (2.0ma)
5879 RCA triple mica "D" getter NOS around 1960 (1.4ma)
5879 Sylvania branded RCA NOS 1970's (1.6ma)
5879 Sylvania branded RCA NOS 1970's (2.5ma)
