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(!!!) (Best Pair) 6F6GT Sylvania and Sylvania Philco NOS 1950-1952 (40ma and 41.5ma) (close Gm)
(!!!) (Best Pair) 6F6GT Sylvania branded GE NOS 1962-1964 (39.5ma and 41ma) (close Gm)
(!!!) (BEST PAIR) 6K6GT Sylvania coated glass NOS 1940's (1) branded Philco (44ma and 44.6ma)
(!!!) (BEST PAIR) 6LF6 Sylvania NOS 1970's short bottle (103ma and 99ma) (close Gm) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
(!!!) (Best Pair) 6V6 Sylvania metal can NOS 1970 era (37.0ma and 37.5ma) 1-2% matched
(!!!) (BEST PAIR) 6X4WA Sylvania NOS 1960's - 1970's (55-55/40 and 54-55/40)
(!!!) (Best Pair) 71A Sylvania NOS 1947 branded Hytron 1951 (25.6ma and 27.4ma)
(!!!) (BEST PAIR) 7308 Sylvania JAN NOS 1976 in white boxes (14.4/19.4ma and 18.0/15.6ma)
(!!!) (BEST PAIR) 809 RCA ceramic base like new 1940 era (68/42 and 70/42)
(!!!) (Best Pair) 8417 Sylvania branded RCA NOS 1960's - 1970 (106ma and 108ma)
(!!!) (Best Price) 5726=6AL5 Sylvania JAN NOS (4 for $8.99)
(!!!) (BEST PRICE) 80 US Brands used/good (5 in stock) ($9.99 each)
(!!!) (Best Quad) 6V6 GE metal can NOS 1976 (38, 38, 38.5, 39mA)
(!!!) (Best RCA Pair #2) 6BL7GTA RCA clear top side getter NOS 1966-1969 (38.5/39.5ma and 40.5/36.0ma)
(!!!) (Best RCA Pair) 6BL7GTA RCA clear top side getter NOS 1965-1969 (46.8/49.2ma and 44.0/46.5ma)
(!!!) (Best Single #1) 6SN7GTB Silvertone by Sylvania NOS 1960 era (10.4ma and 10.8ma) 1-2% section balance (Same Gm)
(!!!) (Best Single #1) JAN-CG-6V6GT GE coated glass NOS 1954 (58.5ma)
(!!!) (Best Single #3) 6SN7GTB Sylvania NOS 1960 era (8.6ma and 7.6ma)
(!!!) (Best Single 1953) 12AX7 GE gray ribbed plates "D" getter 1953 like new (Gm=1600/1600 and 1.1/1.0ma) (1st version)
(!!!) (Best Single 1962) JHS-12AX7 Sylvania NOS 1962 (Gm=2600/2500 and 1.8/1.9ma)
