(!!!) (BEST VALUE) 6072A GE black plates double mica NOS 1980 (2.4/2.7ma)
(!!) (Slightly Microphoinic Single) 6072A RCA black plates NOS 1971 (2.6/3.0ma)
(!!!!!) (Recommended Single) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (2.7/3.0ma) (V1 guitar amp, mics, Audio Note)
(!!!!!) (Single) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new faded printing (2.6/3.1ma) (mic grade)
(!!!!!) (Best Value Single) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new faded printing (2.9/3.2ma) (mic, preamp, amp)
(!!!!) (Best Value Single) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/good (2.0/2.1ma)
(!!!!) (Recommended Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new (2.4/2.8ma and 2.5/2.6ma) 1-3% matched (same Gm)
(!!!!!) (Recommended Pair) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (3.0/2.7ma and 3.0/2.8ma) 1-2% matched (Audio Note, Kondo, Korby, Lawson)
GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (read review)
(!!!!!) (Best Value Pair) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (2.9/3.1ma and 3.1/2.9ma) 1-2% matched (Audio Note, Kondo, mics)
(!!!!) (Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new faded printing (2.8/2.9ma and 2.8/2.9ma) 1% matched
(!!!!) (2nd Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new faded printing (2.6/2.7ma and 2.7/2.8ma) 1-3% matched (Same Gm)