(!!!) (Best Single) EC92=6AB4 Siemens Halske Germany branded Mullard NOS 1964 (10ma)
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom like new 1960's (6.3ma and 13ma) (highest mA and Gm)
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom used/good 1969 (5.8ma and 11.2ma)
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom used/tests like new 1960 era (6.0ma and 12.2ma)
(!!!) (BEST VALUE) EM84=6FG6 Ei Yugoslavia NOS 1970's (10 in stock) (bright eyes)
(!!!) (BEST VALUE) EM84=6FG6 Sylvania India NOS 1970's (1 in stock) (bright eyes)
(!!!) (Recommended Single) EC92=6AB4 Siemens Halske NOS 1967 (9.2ma)
(!!) (Best Single) EC92=6AB4 Siemens Halske Germany NOS 1971 (10.2ma)
(!!) (BEST VALUE) EM84=6FG6 Ei Yugoslavia branded RCA Mexico NOS 1970's (3 in stock) (bright eyes)
(!!) EC92 Siemens Halske NOS rebranded Philips Miniwatt 1968 "O" getter halo (6.8ma)
(BEST SINGLE) EM84=6FG6 Amperex Bugle Boy NOS 1963
EABC80=6AK8 Amperex Italy used/strong 1963 (1.0ma)
EABC80=6AK8 Philips Italy branded RCA Germany NOS 1969 (1.3ma Gm=1500)
EABC80=6AK8 RCA by Siemens Germany NOS 1967 (0.7ma Gm=1200)
ECH81=6AJ8 Amperex Italy NOS 1968 (6.4ma and 12.8ma)
ECH81=6AJ8 Tungsram Hungary branded Telefunken tests like new 1970's (6.5ma and 10.6ma) (strong Gm)
ECH81=6AJ8 Valvo Germany like new 1960 (6.3ma and 10.6ma)
EM84=6FGG Toyo Japan like new 1960's
