Log in using the new customer accounts page.
(!!!!!) (Best Pair #2) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (14/9ma and 12.0/8.2ma) (best sound) (McIntosh, Allnic)
(!!!!!) (Single #2) ECF80=6BL8 Telefunken Germany NOS 1971 (11.8/9.4ma)
(!!!!) (Best Overall Pair) 12AX7A RCA gray ribbed plates NOS 1974 same date codes (best tone) (1.3/1.2ma and 1.3/1.1ma) (Fender, McIntosh, Rogue Audio
(!!!!) (Best Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (12.6/10.6ma and 14/11.5ma) (best sound) (McIntosh, Allnic)
(!!!!) (Best Value Pair) 12AX7A RCA gray ribbed plates NOS 1968-1974 (best tone) (0.8/0.9ma and 0.8/1.0ma) (Fender, Rogue, McIntosh, CJ)
(!!!!) (Single 1950's) 12BH7A RCA branded Westinghouse narrow black plates NOS "U" getter mid-1950's (10.6/7.4ma) (1st series made)
(!!!!) (Single) 12BH7 Tungsol branded Shield gray oval plates "U" getter halo NOS 1961 (11.8/16.5ma) (Highest mA and Gm)
(!!!!) (Single) 12BH7A GE gray oval plates NOS mid-1960's (11.5/16ma)
(!!!) (Best Holland Single) ECF80=6BL8 Amperex Bugle Boy Holland NOS 1957 (14ma/11ma)
(!!!) (Best Mullard Single) ECF80=6BL8 IEC Mullard UK NOS 1966 (16ma/12ma) (Highest mA and Gm)
(!!!) (Best Single 1956) 12BH7A GE gray oval plates NOS "U" getter 1956 (10/9.8ma)
(!!!) (Best Value #1) 12AX7A RCA gray ribbed plates "O" getter halo NOS 1973 (1.0/0.9mA and Gm=1400/1550)
(!!!) (Best Value #2) 12AX7A RCA gray ribbed plates "O" getter halo NOS 1967 (0.9/1.1mA and Gm=1300/1500)
(!!!) (Recommended Pair) 12AZ7A GE Admiral black plates NOS 1960 (10/9ma and 9.2/10.5ma) (McIntosh MC275)
(!!!) (Recommended Pair) 12AZ7A GE gray plates NOS 1969-1970 (8.2/8.0ma and 8.7/8.8ma) (McIntosh MC275)
(!!!) (Recommended Pair) 12AZ7A Sylvania black plates NOS 1960's same build (8.2/9.8ma and 8.4/9.8ma))
(!!!) (Recommended Single) EF94=6AU6 Tungsol used/tests like new 1957 (10ma)
(!!!) (Single) ECF80=6BL8 Telefunken Germany <> bottom NOS 1962 (11/7ma)
(!!!) 12BH7A GE gray oval plates NOS "o" getter 1964 (11.4/10.2ma) (strong Gm)
(!!!) 12BH7A RCA branded Zenith NOS 1970 era (10/13.2ma)
