(!!!) (Best Value Single) 12AX7=ECC83 FISHER HOLLAND large "O" getter halo 1960 used/good (Gm=1550/1600 and .9/1.0ma)
(!!!) (Best Value Single) 12AX7=ECC83 FISHER HOLLAND large "O" getter halo 1961 used/good (Gm=1500/1600 and .9/.9ma)
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1961 (12.8/18mA) (PREMIUM 6BL8 SUB) (Tuners)
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1963 (10.8/13.4mA) (PREMIUM 6BL8 SUB) (Tuners)
(!!!) (Best Value Single) ECC82=12AU7 Philips Holland branded SONOTONE NOS 1960 (10.0/9.2ma)
(!!!) (Best Value Single) ECC85=6AQ8 Philips Holland NOS 1975 (10/17ma)
(!!!) (BEST VALUE SINGLE) EL34 POLAM POLAND (Holland clone) brown base welded plates double "O" getter halos like new 1960 era (88.5ma)
(!!!) (Recommended Pair) 12AX7 Triotron by Philips Holland NOS and Valvo Holland like new 1966-1968 (1.7/1.5ma and 1.5/1.5ma)
(!!!) (Recommended Pair) E80CC=6085 Heitz and Kaufman NOS and Philips Miniwatt SQ Holland like new 1970 (6.2/6.8ma and 7.2/7.7ma)
(!!!) (Recommended Pair) E80CC=6085 ITT NOS and Philips Miniwatt SQ Holland like new 1970-1973 (6.8/8.0ma and 7.9/8.0ma) (Highest mA and Gm)
(!!!) (Recommended Pair) ECC85=6AQ8 RCA Heerlen Holland NOS 1968 (21/16.5ma and 18.5/15.5ma) (close Gm)
(!!!) (Recommended Pair) ECL86=6GW8 Philips and Philips Miniwatt Holland NOS 1965-1970 (1.1/1.3ma and 27/26ma)
(!!!) (Recommended Pair) ECL86=6GW8 Philips and Philips Miniwatt Holland NOS 1967-1969 (1.1/1.5ma and 28/31ma)
(!!!) (Recommended Pair) EL86 Valvo Holland NOS original boxes 1969 (59.5ma and 61.5ma)
(!!!) (Recommended Single) 12AX7=ECC83 Mullard UK old logo copper grid posts used/good 1963 (.9/1.0ma and Gm=1500/1500)
(!!!) (Recommended Single) ECC85=6AQ8 Philips Holland NOS 1970's (11.6/14.2ma)
(!!!) (Recommended Single) ECC85=6AQ8 Philips Holland NOS 1970's (13.5/14.4ma)
(!!!) (Single) 12AU7 Philips Australia NOS 1970 era (9.6/84ma) (same internals as Holland made)
(!!!) (Single) 6688=E180F Amperex PQ USA NOS "O" getter 1968 (9ma)
(!!!) (slightly microphonic Single) E182CC=7119 Amperex PQ Holland NOS large "O" getter halo 1968 (42.5/44.5ma)