6DJ8 Amperex Bugle Boy Holland used/like new 1964 (read review)
(!!!!) (Recommended Single) 12AT7=ECC81 Mullard UK NOS 1966 (9.6ma/8.6ma)
(!!!!) (Recommended Single) 12AY7 GE NOS 1960's (2.2/2.5ma)
(!!!!) (Recommended Single) 12BH7A Sylvania Hammond gray oval plates "D" getter halo used/like new 1959 (10.2/10.6ma)
(!!!!) (Recommended Single) 12BH7A Sylvania Hammond gray oval plates "D" getter halo used/like new 1959 (9/9ma)
(!!!!) (Best Single) 5692 CBS Hytron Brown base NOS 1957 (9.4/9.0ma) (same Gm)
(!!!!) (Single) 5692 RCA RED BASE black plates used/good 1953 (7/8ma) (Schiit Saga+)
(!!!!) (Recommended Single) 6350 GE NOS 1960's (11.2/13.2ma)
(!!!!!) (Best Single) ECC82=12AU7 Telefunken Diamond Bottom <> smooth plates NOS 1970 (14.4/14.2ma) (Highest mA and Gm)
(!!!!) (Best Single #3) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1964 copper grid posts (10.6ma/10.2ma) 1-3% section balance
(!!!!) (Recommended Single) EF86 Telefunken Germany <> bottom NOS gray shield 1972 (2.8ma) (Neumann, Lawson, Soundelux, Manley)
(!!!!) (Recommended Single) JG-5751WA GE NOS black plates triple mica D getter halo 1955 (2.1/2.5ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.8/10ma)
(!!!!) (microphonic single) 6922=E88CC Siemens Halske Germany gray shield NOS 1965 (A0 Series=1st series) (15.2/15.8ma)
(!!!!) (Slightly microphonic single) 12AX7=ECC83 Mullard UK branded Philips ribbed plates NOS 1962 (161 Series) (1.0/1.2ma and Gm=1600/1650)
(!!!!) (2nd Best Siemens Single) ECC83=12AX7 Siemens Halske NOS 1966 (1.0/1.1ma) (Gm=1550/1600)
(!!!!) 5654=6AK5W GE 5 Star NOS (7.0ma)
(!!!!) 6AK5 GE NOS 1973 (10.2ma)
(!!!!) 76 RCA Cunningham used/good 1930's (4.8ma)
(!!!) (#1 19J6 Pair) 19J6 RCA "U" getter halo NOS 1952 same date codes
