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(!!!!) (Best Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/2.2ma and 2.0/2.1ma)
(!!!) (Recommended Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/1.9ma and 1.9/1.8ma) (same Gm)
1612 RCA NOS 1948 (2 in stock)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (9.0/7.2ma)
(!!) (Good Value) EF86=CV2901 Mullard Blackburn UK "D" getter used/good 1959 (2.4ma)
(!!!!) (Single) E83CC=12AX7 Siemens Halske Germany NOS 1976 (0.7/0.9ma and Gm=1400/1600)
6350 GE 5-Star NOS 1963 (13.2/12ma)
* (read review) 6072 GE 5 star triple mica black plates "O" getter halo 1962
6N7GT RCA NOS 1940's (2.5/3.1ma)
6N7GT RCA branded Sylvania NOS 1950's (2.5/2.6ma)
6N7GT RCA used/good 1940's (2.4/2.3ma)
1E7GT US Brands NOS (4 in stock)
6HR6 RCA NOS 1973 (93/60 and 9.5ma)
6HS6 RCA branded Amperex NOS 1968 (8.5ma)
6HS6 RCA NOS 1960's (7.2ma)
(!!!) (Best Value) 7025 RCA gray pinched plates used/good 1961 (Gm=1400/1800 and 0.8/1.5mA) (recommended for guitar amp)
(!!!) (Best Value) 7025 Silvertone Hitachi Japan ribbed gray plates low hours/tests like new 1960's (Gm=1700/1800 and 1.2/1.4mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/good 1960's faded printing (Gm=1400/1600 and 0.9/1.1mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/good 1972 (Gm=1450/1400 and 0.9/0.8mA) (V1 guitar amp)
6F5 GE metal can NOS 1946 (1.2ma Gm=1700)