(!!!) (#1 12AX7 BEST TELEFUNKEN PAIR) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates NOS 1960's in white boxes (highest Ma and Gm)
(!!!) (#1 12AX7 Holland Pair from 1957) ECC83=12AX7 Philips Miniwatt Holland "long plates" low hours/like new with "D" getter halos, copper grid posts, 1957 same date codes (mC2 series)
(!!!) (#1 12AX7 Mazda Pair 1957) 6L13=12AX7 Mazda Valve long plates NOS made by Mullard Blackburn UK 1957 (f91 series) (highest Ma and Gm)
(!!!) (#1 12AX7 QUAD SET) 12AX7 Raytheon Ribbed Black Plates NOS 1962 (Q1) 1-2% matched
(!!!) (#1 12AX7 QUAD SET) 12AX7 Raytheon Ribbed Black Plates NOS 1962 (Q2)
(!!!) (#1 12AX7=ECC803S SINGLE) ECC803S=12AX7 Telefunken Germany <> bottom NOS 1968 1% section balance (Gm=1750/1800) (1.6/1.6ma) (Highest Ma and Gm)
(!!!) (#1 CV4004 - BEST CRYO PAIR) CV4004=12AX7 Mullard Kuhl-Tube cryo NOS 1981 (strong Ma and Gm)
(!!!) (#2 12AX7 BEST TELEFUNKEN PAIR) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates NOS 1960's in white boxes
(!!) (#1 12AX7 - Best Pair - Value and Sound) 12AX7=ECC83 Telefunken Germany <> bottom smooth plate low hours/test like new 1963-1964
(!!) (#1 12AX7 Best Holland Pair from 1961) 12AX7=ECC83 Philips Miniwatt Holland NOS large "O" getter halo 1961 same date codes
(!!) (#1 12AX7 BRIMAR PAIR - BEST IN PHONO) CV4004=12AX7 Brimar England narrow ribbed plates NOS 1966
(!!) (#1 12AX7 Holland from 1958) ECC83=12AX7 Philips Miniwatt Holland "long plates" with "D" getter halo NOS 1958 (Gm=1750/1800)
(!!) (#1 12AX7 QUAD SET) 12AX7 Raytheon Ribbed Black Plates NOS 1962 1-2% matched
(!!) (#1 12AX7 Siemens Pair) ECC83=12AX7 Siemens Halske Germany NOS 1967-1969
(!!) (#1 12AX7 Sylvania Pair) JHS-12AX7 Sylvania NOS 1965 in white boxes
(!!) (#1 12AX7 Sylvania) JHS-12AX7 Sylvania NOS 1961 slightly tilted glass (Gm=1700/2000)
(!!) (#1 12AX7 Telefunken like new) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates low hours/like new 1963 (Gm=1800/1800)
(!!) (#1 12AX7 Telefunken like new) 12AX7=ECC83 Telefunken Germany branded DYNACO <> bottom smooth plates low hours/like new 1963 (Gm=1700/1800)
