(!!!!!) (Best Single) 5687 GE 5 Star NOS 1965 (37ma/40ma) (Audio Note, Modwright)
(!!!!!) (Best Value Pair) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (2.9/3.1ma and 3.1/2.9ma) 1-2% matched (Audio Note, Kondo, mics)
(!!!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (56/40 and 60/40)
(!!!!) (Best Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (54-55/40 and 54-55/40 x 2 tubes)
(!!!!) (BEST PRICE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (3 in stock)
(!!!!) (Best Single) 6X5GT Philips Miniwatt Australia NOS 1940's (53/40 and 53/40)
(!!!!) (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)
(!!!!) (Best Value) JTL-6X4 Tungsol 1950's curved "D" getter low hours/like new reprinted in 1977 (58/40 and 60/40)
(!!!!) (Best Value) JTL-6X4 Tungsol 1950's curved "D" getter low hours/like new reprinted in 1977 (60/40 and 60/40)
(!!!!) (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)
(!!!!) (Recommended Single) 6X5GT Philips Miniwatt Australia NOS 1940's (54/40 and 56/40)
(!!!) (Best 6112 Pair) 6112 Philips JAN 1980's (.7/.7ma and .7/.8ma) 1-2% matched (Audio Note, Musical Fidelity)
(!!!) (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 1944) JAN-CHS-6X5GT Sylvania 1944 NOS (53/40 and 54/40 x 2 tubes)
(!!!) (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)
