(!!!!) (BEST OVERALL PAIR) ECL86=6GW8 Mullard branded GE NOS 1970 (1.4/1.5ma and 36/37.6ma)
(!!!!) (Recommended Pair) ECL86=6GW8 Philips Miniwatt Holland NOS 1965 (1.1/1.3ma and 31/36.5ma)
(!!!) (Recommended Pair) ECL86=6GW8 Holland NOS and like new dimpled disc getter halos 1968-1971 (1.0/1.1ma and 37/38ma)
(!!!) (Recommended Single) ECL86=6GW8 Philips Holland NOS 1968 (1.0ma and 34ma)
(!!) (BEST SINGLE) ECL86=6GW8 Mullard branded POPE NOS 1964 (1.2ma and 43ma)
(!!) (BEST SINGLE) ECL86=6GW8 Mullard branded Sylvania NOS 1973 (1.8ma and 37.2ma)
(!!) (Recommended Pair) ECL86=6GW8 Amperex Bugle Boy Holland NOS 1965-1966 (1.6/1.2ma and 33/33ma)
(!!) ECL86=6GW8 GE by Brimar UK NOS 1968 (1.4/31ma)
(!!) ECL86=6GW8 Mullard branded Sylvania NOS 1973 (1.5ma and 31ma)
(!!) ECL86=6GW8 Tungsram Hungary branded Sylvania Austria NOS 1960's (1.0ma and 32ma)
(!) ECL86=6GW8 Philips Miniwatt made in Canada 1964 used/good (1.2ma and 27ma)
(!) ECL86=6GW8 Tungsol Germany NOS 1960's (1.2ma and 27ma)
ECL86=6GW8 Westinghouse Toshia Japan NOS 1972 pins cleaned of oxidation (1.4ma and 35ma)