(!) (#1 5963 Pair - Best Overall Sound) 5963 RCA NOS "triple mica" with "black ribbed plates" and D getter halo 1956-1957 (1 pair)
(!) (#1 5963) 5963=12AU7 RCA NOS 1960's (10.4/10.6ma)
(!) (#1 5963) 5963=12AU7 RCA NOS 1960's (9.8/10.2ma)
(BEST PAIR) 5963=12AU7 Sylvania NOS 1966 1-2% matched (high Gm)
5963 GE NOS ribbed plates 1960's - 1970's (5 pairs in stock)
5963 GE NOS ribbed plates rebranded Westinghouse mid-1960's (1 pair)
5963 RCA gray plates used/pullouts untested as-is (10 for $9.99)
5963 RCA NOS black ribbed plates" and D getter halo 1956 (9.4/10.2ma)
5963 Sylvania NOS 1960's - 1970's (10.2/10.6ma)
5963 Sylvania NOS 1960's - 1970's (11.6/13.4ma)
5963 Sylvania NOS 1960's - 1970's (12.9/13.4ma)
5963 Sylvania NOS 1966 (10.5/10.8ma)
5963 used/good (50 in stock)
5963=12AU7 GE NOS 1960's (10 in stock)
5963=12AU7 GE rebranded WL5963 Westinghouse 1960's
5963=12AU7 RCA NOS 1960's - 1970's (5 in stock)
