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(!!!!) (Best GE Single 1955) 12AY7 GE NOS 1955 (3.5/2.8ma) (Tweed) (High Gm)
(!!!!) (Best Pair #1) EL34 Mullard UK branded Mullartd and Philips NOS XF4 1976-1977 (96.0ma and 94.5ma) (very close Gm matching)
(!!!!) (Best Pair #1) EL34 Mullard UK branded Mullartd and Philips NOS XF4 1976-1979 (99.5ma and 98.2ma) (close Gm matching)
(!!!!) (Best Pair #2) EL34 Mullard UK branded Mullartd and Philips NOS XF4 1976-1977 (92ma and 88ma) (close Gm matching)
(!!!!) (Best Pair #3) EL34 Mullard branded Philips NOS XF4 1976-1979 (88.5ma and 89.2ma) (Same Gm)
(!!!!) (Best Single #1) 2C51=5670 Sylvania NOS 1970's (9.2/9.0ma) 1-3% section balance
(!!!!) (Best Value Single) JAN-6DJ8=ECC88 Philips by Sylvania NOS 1987 mismatched sections (10/16ma)
(!!!!) (Best Value) 7308 Sylvania branded RCA NOS 1973 (13.2/17.2ma)
(!!!!) (BEST XF4 Pair) EL34 Philips Mullard NOS XF4 1976 (106ma and 107ma)
(!!!!) (BEST XF4 Pair) EL34 Philips Mullard NOS XF4 1976-1979 (90ma and 91.5ma) (same Gm)
(!!!!) (Recommended Pair) 311B Western Electric NOS 1973 and 1975 (35.2ma and 36.4ma)
(!!!!) (Recommended Single) PCC88=7DJ8 Mullard Holland NOS 1973 (11.5/13.8ma)
(!!!!) (Single) 5691 RCA branded GE red base black plates NOS 1960's a few vertical scratches on base (2.1ma/2.3ma)
(!!!!) (Single) 5691 RCA branded GE red base gray plates NOS 1960's (2.1ma/2.4ma)
(!!!!) (Single) 5692 RCA RED BASE black plates used/good 1953 (7/8ma) (Schiit Saga+)
(!!!!) (Single) 6DJ8=ECC88 Sylvania JAN NOS 1975 (19/24.5ma)
(!!!) (Best RCA single #2) 5687 RCA bronze plates NOS 1976 (31.5/34ma)
(!!!) (Best Single) 2C51=5670 Sylvania NOS 1970's (8.8/8.4ma)
(!!!) (Recommended Pair) 6005W Sylvania JAN black plate clear glass NOS 1971-1979 (53.0ma and 54.6ma)
(!!!) (Recommended Single) JAN-2C51=5670 Sylvania gray plates NOS "D" getter 1960 (6.2/6.4ma) 1-3% section balance
