(!!!) (#1 6U8A RCA Pair) 6U8A RCA black plates NOS 1960's (high Ma and Gm)
(!!) (#1 6U8A VALUE PAIR) 6U8A GE NOS 1960's
(!!) (#1 6U8A VALUE PAIR) GB-1252=6U8A Sylvania Gold Brand NOS 1970
(!!) (#1 6U8A VALUE) 6U8A GE NOS 1960's (12 in stock)
(!!) (#1B 6U8A Value Pair) JAN-6U8A GE NOS 1970's
(!) (#1 6U8 BEST OVERALL PAIR) ECF82=6U8 Telefunken <> bottom NOS original boxes 1969 factory sealed 1-2% matched (matched on Amplitrex)
(!) (#1 6U8 Best Value) ECF82=6U8 Telefunken <> bottom used/like new 1960's
(!) (#1 6U8 ENGLAND PAIR) CV5065=6U8 Ediswan England Kuhl-Tube cryo BLACK PLATES and "D" getter halo NOS 1955 1-2% matched (highest Ma and Gm)
(!) (#1 6U8 Holland) 6U8 Amperex Bugle Boy Holland low hours/tests like new 1960 (10ma Pentode / 22ma Triode) (very strong single)
(!) (#1 6U8 Single) ECF82=6U8 Telefunken <> bottom NOS 1964
(!) (#1 6U8A England single) CV5065=6U8A Thorn AEI England NOS 1966 (10ma and 18.4ma)
(!) (#1 6U8A VALUE PAIR) GB-1252=6U8A Sylvania Gold Brand NOS 1970
(!) (#1B 6U8 PAIR) CV5065=6U8 Ediswan England BLACK PLATES and "D" getter halo NOS 1955
(!) (#1C 6U8 Pair) ECF82=6U8 Telefunken NOS original boxes 1964 - same date codes 1-2% matched
(!) 6U8A Raytheon black plates "O" getter halo 1962 same date codes (1 Pair)
(!) 6U8A RCA NOS; triode section has black plate, pentode section has gray plate 1960's (1 pair)
6678 (see 6U8)
6U8=ECF82=CV5065 Siemens Germany NOS 1969-1970
