(!!!!) (SINGLE) ECC81=12AT7 Telefunken Germany <> bottom NOS 1965 (9.8ma/13.4ma)
(!!!!) (Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.0ma)
(!!!!) (Single) JAN-CHS-6SN7W Sylvania "SHORT BOTTLE" 1945 low hours like new in Admiral box (7.8/9.8ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.2/9.8ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.8/10ma)
(!!!!) (Slightly microphonic single) 12AX7=ECC83 Mullard UK branded Philips ribbed plates NOS 1962 (161 Series) (1.0/1.2ma and Gm=1600/1650)
(!!!!) (Slightly microphonic Single) CV4004=12AX7 Mullard box plates NOS 1981 (Gm=1400/1500) (0.8/1.1ma)
(!!!!) (Tungsol Single) JAN-12AY7 Tungsol like new 1960 era (2.9/2.7ma) (same Gm)
(!!!!) 6AK5 GE NOS 1973 (10.2ma)
(!!!!) 6DJ8=ECC88 Philips by Sylvania NOS 1987 mismatched sections (9.6/16ma)
(!!!) (#1 19J6 Pair) 19J6 RCA "U" getter halo NOS 1952 same date codes
(!!!) (#1 286A) 286A Western Electric "top printing" NOS 1942-1945 (7.0ma)
(!!!) (#1 6BX7GT RCA single) 6BX7GT RCA NOS 1961 (41/48ma)
(!!!) (#2 19J6 Pair) 9J6 RCA NOS 1950's - 1960's same internal plate structure, different getter halo shape
(!!!) (1 Pair) 6J7 RCA Radiotron used/good 1940's (1.7ma and 1.8ma)
(!!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (9ma and 9ma) 1-2% matched
(!!!) (1 Pair) 6SH7GT National Union branded Raytheon NOS 1940's (9.5ma and 10ma)
(!!!) (2nd Best Pair) 311B Amperex made in Russia NOS 1977 (31.8ma and 33.2ma) (very good construction)
(!!!) (2nd Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1971 (4.9/5.2ma and 59/56ma)
(!!!) (2nd Best Pair) ECL82=6BM8 Philips Mullard UK NOS 1969 same date codes (1.7/31.5ma and 1.7/35ma)