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(!!!) (Best Value Pair) 6350 Sylvania rebranded United black ribbed plates NOS "U" getter 1957 (10.0/10.2ma and 10.5/9.5ma)
(!!!!) (Recommended Single) 6350 GE NOS 1960's (11.2/13.2ma)
(!!!) (Best Single) 6350 RCA black plates NOS "O" getter NOS 1960's (16.0/16.2ma) (Highest Ma and Gm)
(!!!) (Best Single) GB-6350 Sylvania Gold Brand black plates NOS 1963 square "D" getter (10.2/10.6ma)
(!!) (Recommended Single) 6350 RCA NOS rebranded United triple mica "U" getter halo 1950's (9/9.6ma)
(!!) (Recommended Single) 6350 Sylvania black plate NOS "U" getter halo 1957 (9/10ma)
(!!) 6350 RCA NOS triple mica "U" getter NOS 1960 era (12.8/13.2ma)
(!!!) (GE Pair) 6350 GE NOS 1968-1973 (10.3/9.8 and 8.6/11.2ma)
(!!!!!) (Recommended Pair) 6350 Sylvania black plates NOS 1960 era "D=SQUARE" getter (9.4/8.2ma and 10.2/8.4ma)
6350 GE 5-Star like new "O" getter 1962-1963 era (9.6/9.8ma)
6350 Sylvania black plates "U" getter halo used/good 1956, faded printing (8.2/8.8ma)
6350 Sylvania black plates NOS, "U" getter halo 1956, faded printing (11.5/14.5ma)
6350 Sylvania made for IBM black plates "U" getter halo tests like new 1959, faded printing (11.8/12.2ma)
6350 Sylvania made for IBM black plates "U" getter halo used/good 1950's, faded printing (9.2/9.7ma)
(!!) (Single) 6350 GE black ribbed plates NOS 1968 (9.0/9.2ma)
6350 GE 5-Star NOS 1963 (13.2/12ma)
(!!!) (Good Value Pair) 6350 Sylvania black ribbed plates "U" getter used/good 1957 (9.6/9.3ma and 9.5/9.8ma) 1-3% matched (same Gm)
(!!!!) (Best GE Single) 6350 GE NOS 1960's (12.2/12.8ma) (same Gm)
(!!!) (Best 0verall Single) GB-6350 Sylvania Gold Brand black plates NOS 1963 square "" getter (14/13ma)
(!!!) (Best Single) 6350 Sylvania Hewlett Packard black plates "D" getter halo tests like new 1950's (12.8/12.6ma) (Same Gm) 1-2% section balance
