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(!!!!) (Best Single #1) 12AX7=ECC83 Philips Miniwatt Holland ribbed plates NOS 1965 (1.4/1.3ma and Gm=1900/1900) 1-2% section balance
(!!!!) (Best Single #2) 12AU7=ECC82 Mullard UK shield logo NOS 1965 (11.2/12.6ma) (smooth rich sound)
(!!!!) (Best Single #3) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (12.0/10.2ma)
(!!!!) (Best Single 1965) CV491=12AU7=ECC82 Mullard UK NOS ribbed plates 1965 (12.5/11.8ma) (High Gm)
(!!!!) (Best Single 1969) 6DJ8 IEC Mullard used/tests like new 1969 (18.2/18.0ma) 1-2% section balance (sweet midrange)
(!!!!) (Best Single) ECC32=CV181 Mullard branded Philips Miniwatt brown base/black plates "D" getter halo mid-1950's (6.2/6.4ma) 1-2% section balance
(!!!!) (Best Single) EF86 Mullard UK branded Philips Miniwatt "D" getter NOS 1954-1955 (3.3ma, Gm=2100) (oldest single)
(!!!!) (Best Value Single) 12AU7=ECC82 Philips by Mullard UK ribbed plates used/good 1969 (8.2/8.2ma) 1% section balance
(!!!!) (Best Value Single) EZ81 GE Mullard Blackburn UK NOS 1966 (57/40 and 60/40)
(!!!!) (Best Value Single) EZ81 Mullard Blackburn UK branded Pope Holland "D" getter used/strong 1963 (56/40 and 57/40)
(!!!!) (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) 12AU7A Amperex and Philips by Mullard UK NOS ribbed plates 1974 (10.6/11.6ma and 10.4/11.2ma) (DAC, linestage)
(!!!!) (Recommended Pair) ECC81=12AT7 Philips by Mullard NOS 1966-1970 (10/9.2ma and 9.3/8.6ma) (Close Gm matching) 1-5% matched
(!!!!) (Recommended Single) 6DJ8 Philips Miniwatt Holland NOS 1960 era large "O" getter halo (18.0/19.4ma)
(!!!!) (Recommended Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.6/10.8mA)
(!!!!) (Recommended Single) EC92 Valvo Germany by Siemens NOS 1972 (12.5ma)
(!!!!) (Recommended Single) PCC88=7DJ8 Mullard Holland NOS 1973 (11.5/13.8ma)
(!!!!) (Single 1961) 12AU7=ECC82 Mullard BVA UK shield logo NOS 1961 (7.5/9ma) (Gf1 series) (smooth rich sound)
(!!!!) (Single) 12AT7 Philips by Mullard UK NOS 1965 (14.3/8.5ma)
