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(!!!!) (Best Pair) 5881 GE Canada NOS 1965-1970 (73ma and 73.5ma) (same internal build and sonics as 5881 Tungsol)
(!!!!) (BEST PAIR) 6BL7GTA GE branded RCA/Raytheon"D" getter halo NOS 1950's (37.0/38.2ma and 35.5/42.2ma) (close Gm matching)
(!!!!) (BEST PAIR) 6BL7GTA GE branded Tungsol "D" getter halo NOS 1950's (36.6/37ma and 39/37ma) (close Gm matching)
(!!!!) (Best Pair) 6U8A Philips by Sylvania NOS 1986 (14/10ma and 14.2/9.6ma)
(!!!!) (Best Pair) 6V6GT GE coated glass NOS 1952-1954 (46.8ma and 47.5ma)
(!!!!) (Best Pair) 6V6GT Sylvania coated glass black plates NOS 1950's (45.5ma and 47ma)
(!!!!) (Best Pair) 7189 Sylvania black plates NOS 1970 era (42ma and 46ma)
(!!!!) (BEST PAIR) 7C5 Sylvania branded International NOS 1960's (39ma and 40ma) (LOKTAL BASE 6V6GT)
(!!!!) (BEST PAIR) 811A GE made by RCA NOS 1950's (55/36 and 56/36)
(!!!!) (Best Price) 6AU8 Sylvania NOS (4 for $9.99)
(!!!!) (Best Price) 6AU8A RCA NOS (4 for $9.99)
(!!!!) (Best Quad) 6BL7GTA Sylvania black plates NOS 1960's same build matched quad
(!!!!) (Best Quad) 8417 RCA by Sylvania NOS 1970's (95.5, 96, 98, 99.6ma)
(!!!!) (Best Single #1) 2C51=5670 Sylvania NOS 1970's (9.2/9.0ma) 1-3% section balance
(!!!!) (Best Single #1) 5692 CBS Hytron Brown base NOS 1957 (8.0/8.4ma)
(!!!!) (Best Single #3) 7581A GE NOS 1979 (76ma)
(!!!!) (Best Single 1970's) 6SN7GTB Sylvania branded GE coin-base NOS 1970's (9.2/9.2ma) 1-2% section balance
(!!!!) (Best Single) 12BH7A Sylvania Silvertone gray oval plates large "D" getter halo 1950's NOS (13.6/12.4ma)
(!!!!) (Best Single) 6DJ8=ECC88 Sylvania JAN NOS 1974 (17.0/17.5ma) 1-3% section balance
(!!!!) (Best Single) 6L6GC RCA black plate NOS 1962 (88ma)