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(!!!) (Best Single) GB-5654=6AK5 Sylvania Gold Brand nickel pins 1970's (8.5ma)
(!!!) (Best Value Pair) 5Z3G RCA NOS 1957 in gold colored boxes slightly tilted glass (56-59/40 and 57-60/40)
(!!!) (Best Value Pair) 6J5GT Ken Rad black ribbed plates NOS 1942 (7.2ma and 7.2ma) 1-2% matched
(!!!) (Best Value Pair) 71A Sylvania branded Raytheon NOS 1947 (25.2ma and 29.2ma)
(!!!) (Best Value Single) 45 Tungsol tests like new 1940's (40ma)
(!!!) (Good Pair) 71A Sylvania branded Raytheon NOS 1940's (25.8ma and 26.2ma)
(!!!) (Recommended Single) 5Z3G RCA NOS 1954 (58/40 and 60/40)
(!!!) (Recommended Single) 5Z3G RCA NOS 1957 (58/40 and 60/40)
(!!!) (Recommended Single) 5Z3G RCA NOS 1957 (60/40 and 62/40)
(!!!) (Recommended Single) 5Z3G RCA NOS 1957 (60/40 and 63/40)
(!!!) (Recommended Single) 5Z3G RCA NOS 1971 (56/40 and 58/40)
(!!!) (Slightly microphonic Single) 6SL7GT Ken Rad NOS 1945 era (2.6/2.3ma)
(!!) (Best Single) 6SC7 GE NOS 1955 (2.2/2.1ma)
(!!) (Good Value Pair) CX-71A and 71A RCA/Cunningham Balloon used/good 1930 era (21ma and 18.5ma) (same Gm)
(!!) (Good Value Pair) UX-171A and CX-371A RCA/Cunningham Balloon used/good 1930 era (18ma and 17.6ma) (same Gm)
(!!) (~ Recommended ~) VT-107A=JAN-CHS-6V6GT Sylvania black plate / gray coated glass NOS 1945 (35ma)
(!!) 6V6GT=VT-107A National Union coated glass NOS 1945 (37ma)
(!!) 71A RCA/Cunningham NOS 1940 era (20ma)
(!) JHS-6AK5 Sylvania NOS 1954 (5.5ma)
(READ REVIEW) 71A RCA branded Arcturus NOS 1940 era (22.6ma and 23.8ma) (same Gm)
