(!!!) (Recommended Single) 12AX7=ECC83 Mullard UK old logo copper grid posts used/good 1963 (.9/1.0ma and Gm=1500/1500)
(!!!) (Recommended Single) CV378=GZ37 Mullard NOS "O" getter halo 1967 (50/40 and 50/40)
(!!!) (Single) 7025 Amperex Globe Logo Holland used/good 1967 (Gm=1300/1400 and mA=0.9/1.1ma)
(!!!) 6922=E88CC Tesla Czech Republic NOS 1967 (12/15.7ma) (mis-matched Gm)
(!!!) JAN-5814A Sylvania NOS 1967 (8.4/9.2ma)
(!!!) JAN-5814A Sylvania NOS 1967 (8.6/11.2ma)
(!!) (6202 Best Value) 6202 GE rebranded 6X4WA GE JAN NOS 1981 (61/40 and 64/40)
(!!) (Best Value Holland 1959) 12AX7 ADZAM Holland NOS 1959 large "O" getter halo (.8/1.1ma and Gm=1400/1600)
(!!) 12AT7=ECC81 Siemens Halske Germany used/good 1964 (8.2ma/12.2ma)
(!!) 5751 GE 5 Star used/good 1970 (1.6/1.7ma)
(!!) 5751 Sylvania misbranded 12AX7WA NOS 1960's (1.9/1.9ma)
(!!) 6BM8=ECL82 Pope Holland used/good 1965 (12.4ma/24ma)
(!) 5C22 ITT Electron Tube Division low hours/good condition 1967 some scratches on the base
(!) 807 GE Italy gray plate NOS 1967 same build as UK made (80ma)
407A Western Electric like new 1968 in white box (54/26 and 64/26)
6AS7GA Westinghouse like new 1967 (67ma and 71ma)
6DJ8 Telefunken Germany <> bottom used/good 1967 (13.5/14.0ma)
7247 GE NOS tall gray ribbed plates 1970's (1.1ma and 9.4ma)
EL84 Siemens Halske Germany NOS 1967 (45ma)
