(!!) (#1 5963 GE Pair) 5963 GE NOS ribbed plates 1960's - 1970's 1-2% matched
(!!) (#1 5963 GE Single) 5963=12AU7 GE NOS 1960's (11.6/11.8ma)
(!!) (#1 5963 RCA PAIR) 5963 RCA NOS 1960 and 1968
(!!) (#2 5963 GE Pair) 5963 GE NOS ribbed plates 1960's - 1970's 2-3% matched
(!!) (#2 5963 GE Single) 5963=12AU7 GE NOS 1960's (10.4/12.2ma)
(!!) (#2 5963 RCA) 5963=12AU7 RCA NOS 1971 (11.2/14.4ma) (High Ma and Gm)
(!!) 5963 RCA black ribbed plates" and D getter halo low hours/tests like new 1955-1957 (9.2/10.2ma) (12AU7 SUB)
(!!) 5963 RCA black ribbed plates" and D getter halo used/very good 1956 era (9.0/10.2ma) (12AU7 SUB)
(!) (~ Recommended Single ~) 5963=12AU7 Sylvania NOS 1965 (9.2/11ma)
5963 GE NOS ribbed plates rebranded Westinghouse mid-1960's (1 pair)
5963 RCA gray plates used/good/tested (set of 10 for $38.99)
5963 RCA used/good (50 in stock)
5963 Sylvania NOS 1966 (10.5/10.8ma)
5963=12AU7 GE rebranded WL5963 Westinghouse 1960's (5 in stock)
