(!!!) (READ REVIEW) EL86 Valvo Holland NOS original boxes 1969 (71ma and 72.5ma)
(!!!) (Recommended Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/1.9ma and 1.9/1.8ma) (same Gm)
(!!!) (Recommended Pair) EL86 Valvo Holland NOS original boxes 1969 (59.5ma and 61.5ma)
(!!!) (Recommended Single 1963) JG-5751 GE double mica gray plates NOS 1963 (2.2/2.4ma)
(!!!) (Recommended Single) 12AY7 GE NOS 1970 (2.0/2.3ma)
(!!!) (Recommended Single) 5751 GE double mica gray plates NOS 1979 (2.4/2.5ma)
(!!!) (Recommended Single) CV5358=6DJ8 Mullard UK used/good 1969 some stains on glass (17.2/17.8ma) (High Ma and Gm)
(!!!) (Recommended Single) JAN-5751 GE double mica gray plates NOS 1981-1982 (2.3/2.7ma)
(!!!) (Single 1955) JG-12AY7 GE "D" getter like new 1955 (3.3/2.7ma) (High Gm)
(!!!) (Single 1956) 12AY7 GE "D" getter like new 1956 (3.1/2.8ma)
(!!!) (Single) EC92=6AB4 Siemens Halske Germany branded Philips Miniwatt NOS 1965 (9ma)
(!!!) (Single) ECL82=6BM8 Mullard UK branded Dumont NOS 1966 (2.2/31ma)
(!!!) 6SN7GTB Westinghouse black plates copper grid posts "D" getter 1950's (7.2/8.4ma)
(!!!) JHS-6189=12AU7WA Sylvania NOS 1966 in white box (8.5/10.2ma)
(!!!) JHS-6189=12AU7WA Sylvania NOS 1966 in white box (9.6/11.4ma)
(!!) (Best Single) EC92=6AB4 Siemens Halske Germany NOS 1971 (10.2ma)
(!!) (Best Telefunken) ECF82=6U8 Telefunken Germany <> bottom NOS 1968 (13ma triode and 9.6ma pentode)
(!!) (Best Telefunken) ECF82=6U8 Telefunken Germany <> bottom NOS 1969 (24ma triode and 9.4ma pentode)
(!!) (Best Value Single) 12AX7=ECC83 Mullard UK copper grid posts used/good 1965 (Gm=1400/1400)
(!!) (Best Value Single) ECL82=6BM8 RCA Mexico NOS 1970's (2.1ma/28ma)