(!!!!!) (2nd Best Amperex Pair) JAN-7308 Amperex USA gold pins NOS 1977 (15.8/14.5ma and 15.2/15.4ma)
(!!!!!) (Best Amperex Pair) JAN-7308 Amperex USA gold pins NOS 1977 (15.0/16.4ma and 15.2/15.8ma)
(!!!!!) (Best Pair 1963) 12AX7=ECC83 Mullard UK made for Knight like new ribbed plates 1963 (161 series) (1.0/1.0ma and 0.9/1.0ma) (1-3% matched)
(!!!!!) (Best Pair 1974) 12AU7 Mullard UK NOS 1974 (10.5/10.7ma and 10.4/11.5ma) (Rogue, Hovland, Audio Note)
(!!!!!) (Best Single 1961) EF86 Amperex Bugle Boy France NOS 1961 (3.1ma)
(!!!!!) (Best Single 1965) EF86 Amperex Bugle Boy Holland Belgium plant NOS 1965 (4.5ma)
(!!!!!) (Best Single 1966) EF86 Amperex Bugle Boy Holland Belgium plant NOS 1966 (3.9ma)
(!!!!!) (Best Single 1967) 6DJ8=ECC88 Philips Miniwatt Holland "o" getter 1967 (16/18.8ma)
(!!!!!) (Best Single) 6DJ8=ECC88 Philips Miniwatt Holland "O" getter 1965 (21/23ma) (Highest mA and Gm)
(!!!!!) (Recommended Mullard Pair) 6BQ5=EL84 Mullard UK branded RTC England NOS 1971-1978 (45.5ma and 48.0ma)
(!!!!!) 12AU7 Philips Holland "O" getter halo 1969 low hours/tests like new (9.6/8.6ma)
(!!!!) (2nd Best Single) 5842=417A Amperex "PQ" Holland "D" getter Gold Pins NOS 1956-1959 (23ma)
(!!!!) (Best 6922 Single) USN-CEP-6922 Amperex USA NOS 1964 pins #7-#8 gently cleaned of oxidation (18.5ma/20.2ma) (Best American Made 6922)
(!!!!) (Best Bugle Boy Single 1959) 12AU7 Amperex Bugle Boy England (Mullard) long plates with "D" getter like new 1959 (12.4/9.8ma)
(!!!!) (BEST MULLARD PAIR) EL84 Philips Mullard UK NOS 1976-1977 (56.2ma and 59ma) (Same Gm)
(!!!!) (Best Pair) 311B Amperex made in Russia NOS 1977 (34.2ma and 34.5ma) (very good construction)
(!!!!) (Best Single 1956) 12AU7=ECC82 Amperex Holland "long-plates" large "D" getter with crossbar like new 1956 (9.2/8.2ma) (rare)
(!!!!) (Best Single 1959) ECC82=12AU7 Miniwatt Holland "D" getter 1959 (ct3-delta9I) (11.2/11.4ma)
(!!!!) (Best Single 1965) ECC82=12AU7 Miniwatt Holland like new 1965 (9.4/9.4ma) 1% section balance
(!!!!) (BEST SINGLE) 12AX7A=ECC83 Matsushita Japan NOS rebranded Raytheon NOS 1970 era (Gm=1800/1800 and 1.5/1.3ma) (similar to Mullard)