(!!!!!) (Best Sylvania Pair) 6DJ8 Sylvania NOS 1960's (15.2/21ma and 15/18.5ma) (good detail and smooth)
(!!!!!) (Good Value Pair) 12BH7A Sylvania gray pinched plates NOS and used 1970 era (7.6/8.0.4ma and 7/7ma)
(!!!!!) (INFORMATION) 6N1 or 6N1P (Best Sounding Substitutes = 6BK7B, 6BQ7A, 6BZ7)
(!!!!!) (Recommended Pair 1960-1965) 12BH7A Sylvania gray oval plates NOS "O" getter (11.5/10ma and 10.5/10ma) (Art Audio, Quicksilver, Octave)
(!!!!!) Freed Power Transformer (high voltage - 1160VCT) like new (2 in stock)
(!!!!) (1 Pair) 5654=6AK5W GE NOS 1983 (7.3ma and 7.9ma) (same Gm)
(!!!!) (2nd Best Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.8ma and 6.9ma) (Same Gm)
(!!!!) (3rd Best Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.5ma and 6.5ma) 1% matched
(!!!!) (Best Overall Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (7.3ma and 7.3ma) 1-2% matched
(!!!!) (Best Overall Pair) JAN-6528A Raytheon NOS 1978 (132/138ma and 143/144ma)
(!!!!) (Best Overall Single) 50 RCA Cunningham engraved base NOS ST-19 around 1940 (61.5ma) (strong Ma and Gm)
(!!!!) (BEST PAIR 1960's) 6DJ8 Sylvania NOS 1960's (17.0/17.8ma and 14.5/19ma)
(!!!!) (BEST PAIR) 309A Western Electric NOS 1960 (4.8ma and 5.1ma) (same Gm)
(!!!!) (Best Pair) 429A Western Electric NOS 1978 (47-47/20)
(!!!!) (Best Pair) 429A Western Electric NOS 1978 (47-50/20)
(!!!!) (Best Pair) 429A Western Electric NOS 1978 (51-53/20)
(!!!!) (Best Pair) 6189W Sylvania NOS 1976-1979 (9.5/9.6ma and 9.2/10.2ma) 1-3% matched
(!!!!) (Best Pair) 6AC7 RCA NOS 1960's (11ma and 11.8ma)
(!!!!) (Best Pair) 6AC7 RCA NOS 1961-1962 (10.3ma and 10.6ma)
(!!!!) (Best Pair) 6DJ8 Philips ECG USA by Sylvania NOS 1987 (16.8/17.8ma and 16.8/18ma) 1-2% matched
