(!!!) (Best Single) ECL86=6GW8 Siemens Germany branded RCA NOS 1964 (1.0ma and 39ma)
(!!!) (Best Single) EL60 Philips Holland metal base NOS 1958 in white box (91ma)
(!!!) (Best Value Single) ECC82=12AU7 Philips Holland branded SONOTONE NOS 1960 (10.0/9.2ma)
(!!!) (Best Value used) 12AU7=ECC82 Mullard UK branded Philips Miniwatt ribbed plates used/good 1962 (8.2/10.4ma)
(!!!) (Good Value Single) ECL86=6GW8 RCA by Siemens Germany NOS 1963 (1.5ma and 36ma)
(!!!) (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 Single) 12AU7=ECC82 Mullard UK branded Philips NOS 1969 (9.0/9.2ma) 1-2% section balance
(!!!) (Recommended Value Pair) ECL86=6GW8 Philips Holland NOS 1968-1969 (1.0/1.1ma and 31/34ma)
(!!!) 12AU7WA Mullard branded Chelmer Valve used/good 1961 (7.7/8.8ma)
(!!) (#1 12AT7 France) 12AT7 Philips Miniwatt France NOS 1964 in white box (7.4/7.8ma)
(!!) (Best Single) ECL86=6GW8 Amperex Bugle Boy Holland NOS 1966 (1.3ma and 40ma)
(!!) (BEST SINGLE) ECL86=6GW8 Brimar UK branded GE NOS 1977 (1.2ma and 44ma)
(!!) (Best Value Holland 1959) 12AX7 ADZAM Holland NOS 1959 large "O" getter halo (.8/1.1ma and Gm=1400/1600)
(!!) (Best Value Single) ECC85=6AQ8 RCA Canada NOS 1970's (12.6/11.0ma)
(!!) (Best Value Single) ECL82 EI Yugo branded PAN Germany in PAN box NOS 1974 (2.3ma and 42ma)
(!!) (Good Value Single) ECC82=12AU7 Philips Miniwatt Holland used/good 1965 (7.8/10ma)
(!!) (Recommended Pair) ECL86=6GW8 GE and Philips by Brimar UK NOS 1968 (1.4/1.0ma and 31/33ma)
(!!) (Recommended Pair) ECL86=6GW8 Mullard UK NOS 1964 and 1973 same build (1.5/1.3ma and 31/30ma)
(!!) (SINGLE) 6BM8=ECL82 Valvo Holland used/good 1960 (1.9ma/34ma)
