(!!!!) (Best Overall Pair) 6112 Philips JAN 1980's (1.2/1.2ma and 1.1/1.5ma) (Highest mA and Gm) (Audio Note, Musical Fidelity)
(!!!!) (Best Overall Pair) 6112 Philips JAN 1985 (1.0/1.0ma and 0.9/1.1ma) 1-3% matched (Audio Note, Musical Fidelity)
(!!!!) (BEST PRICE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (54/40 and 55/40)
(!!!!) (Best Single #1) E182CC=7119 Mullard SQ Holland NOS large "O" getter halo 1964 (34.2/38ma)
(!!!!) (Best Single) 6X5GT Philips Miniwatt Australia NOS 1940's (53/40 and 53/40)
(!!!!) (Best Single) JAN-5687WB GE NOS 1972 (34.6/35.6ma)
(!!!!) (Best Sylvania Pair) 6X5GT Sylvania NOS 1951 (50-53/40 and 52-53/40)
(!!!!) (Best Value Single) 6X5GT Philips Miniwatt Australia NOS 1940's (49/40 and 50/40)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (25/27ma and 26.5/26ma)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (26.2/27ma and 25.6/28ma)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (26/27ma and 26.6/27.8ma)
(!!!!) (Good Value Pair) JAN-5687WB GE used/good 1970 era (29.5/31ma and 29.2/29.6ma)
(!!!!) (Recommended Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (53-55/40 x 2 tubes)
(!!!!) (Recommended Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (54-55/40 and 54-55/40 x 2 tubes)
(!!!) (2nd Best Pair) ECL82=6BM8 Philips Mullard UK NOS 1969 same date codes (1.7/31.5ma and 1.7/35ma)
(!!!) (Best Overall Pair 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (62-62/40 and 60-62/40)
(!!!) (Best Pair 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (51-53/40 and 51-54/40)
(!!!) (Best Pair) 6BM8=ECL82 Philips Holland made in Belgium NOS 1969 (1.8ma/31ma and 1.9/30ma) 1-2% matched
(!!!) (BEST PAIR) JHY-0B2WA CBS NOS 1960 (neon gas) (1 pair)
