(!!!) (Best Sylvania Pair) 5879 Sylvania branded RCA NOS 1970's (1.8ma and 1.8ma) 1% matched
(!!!) (Best Sylvania Pair) 5879 Sylvania branded RCA NOS 1970's (1.8ma and 1.9ma) 1-2% matched
(!!!) (Best Sylvania Pair) 5879 Sylvania branded RCA NOS 1970's (2.2ma and 2.2ma) 1-2% matched (Highest mA and Gm)
(!!!) (Recommended Pair) 5879 Sylvania branded RCA NOS 1970's (1.6ma and 1.7ma)
(!) (Best Single) 5879 RCA rebranded GE NOS triple mica "D" getter 1957 (2.0ma)
5879 RCA low hours/tests like new 1960's (1.8ma)
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 (2.5ma)
