(!!!) (Recommended Pair) 5879 Sylvania branded RCA NOS 1970's (1.6ma and 1.7ma)
(!!!) (Best RCA Pair) 5879 RCA branded GE NOS 1974 (2.2ma and 2.0ma)
5879 RCA branded Raytheon chrome shield NOS 1970's (2.2ma)
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 RCA branded Raytheon triple mica NOS 1960's (2.0ma)
5879 Sylvania branded RCA NOS 1970's (2.5ma)
(!!) (Recommended Pair) 5879 RCA branded Raytheon triple mica D getter NOS early 1960's (1.8ma and 1.5ma)
(!!) (Recommended Pair) 5879 RCA branded Raytheon NOS 1960's (2.0ma and 2.4ma) (same Gm)
(!!) (Recommended Pair) 5879 RCA branded Raytheon triple mica D getter NOS 1960's (1.4ma and 1.4ma)
5879 RCA branded Raytheon chrome shield NOS 1970's (1.7ma)
5879 RCA branded Raytheon gray shield NOS 1970's (2.2ma)
