(!!!!) (~ Best Overall Sound ~) ECF82=6U8 Telefunken <> bottom NOS original boxes 1969 (recommended pair)
(!!!) (Best US Made Pair) 6U8A Raytheon black plates "O" getter halo 1962 same date codes (1 Pair)
(!!!) (~ Best Pair ~) GB-1252=6U8A Sylvania Gold Brand NOS 1960's
(!!!) (~ Best Pair ~) GB-1252=6U8A Sylvania Gold Brand NOS 1960's (Highest Ma and Gm)
(!!) (#1B 6U8A Value Pair) JAN-6U8A GE NOS 1970's
(!!) (Recommended Single) 6U8A Raytheon USA black plates "U" getter NOS 1962 (17.2ma and 8.0ma)
(!!) (Recommended Single) 6U8A Raytheon USA NOS 1962 (16.6ma and 9.4ma)
(!!) (~ Good Value ~) 6U8A GE NOS 1960's (12 in stock)
(!!) (~ Recommended Pair ~) 6U8A GE NOS 1960's
(!) (#1 6U8 Best Value) ECF82=6U8 Telefunken <> bottom NOS 1960's (Pentode 65% and Triode 100%)
(!) (#1 6U8 Best Value) ECF82=6U8 Telefunken <> bottom used/like new 1960's
(!) (#1 6U8 Single) ECF82=6U8 Telefunken <> bottom NOS 1964
(!) (#1 6U8A England single) CV5065=6U8A Thorn AEI England NOS 1966 (10ma and 18.4ma)
(!) (~ Best British 6U8 ~) CV5065=6U8 Ediswan England BLACK PLATES and "D" getter halo NOS 1955 (very good single)
(!) ECF82=6U8 Telefunken <> bottom used/good 1967
6678 (see 6U8)
6U8=ECF82=CV5065 Siemens Germany NOS 1969-1970
6U8A Raytheon USA NOS Black Plates NOS 1960's
6U8A Rogers Canada NOS 1974 (8ma and 14.8ma)
