(!!!) (Best Pair from 1959) EL84 Wien Austria same build and sound as Holland 1959 (38ma and 39ma)
(!!!) (Recommended Pair) ECC85=6AQ8 RCA Heerlen Holland NOS 1968 (21/16.5ma and 18.5/15.5ma) (close Gm)
EL84 Miniwatt Heerlen Holland NOS 1964 (46.5ma)
