(!) (Good Value Pair) 6SF5 RCA used/good 1948 Pair (0.8ma and 0.8ma)
(!!!!!) (2nd Best Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (10.2/8.6ma and 9.5/8.6ma) (best sounding ECC33 of all-time)
(!!!!) (Best Single 1950's) ECC33=6SN7GT Mullard black plates platter getter halo NOS 1950-1955 (10.2/12.2ma)
(!!!) (Recommended Pair) 6AC7=1852=VT-112 RCA used/very good 1944 (9.5/9.5ma)
(!!!!!) (3rd Best Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (8.6/9.6ma and 8/10ma) (best sounding ECC33 of all-time)
14C5 Sylvania NOS (1 in stock)
(!!) (Recommended Pair) USN-CRC-6AC7=VT-112 RCA 1942-1944 used/very good (9.4/9.6ma) 1-3% matched
14AF7=XXD Ken Rad NOS
12AT6 Brimar BVA UK NOS 1955 in white box (71/60)
6AC7 Tungsol NOS 1950's (8.2ma)
XXFM=7X7 Sylvania branded Philco NOS (2 in stock)
(!) (BEST SINGLE) 6BE6 RCA NOS 1970's (2.0ma Gm=1000)
(!) (BEST SINGLE) 6BE6 TEN Japan NOS 1960's (1.5ma Gm=900)
UY-224A Champion Balloon used/very good 1930's (46/25)
(!!) (BEST PAIR #2) 6BE6 Raytheon NOS 1960's (1.7ma and 1.5ma)
(!!) (BEST PAIR #1) 6BE6 Raytheon NOS 1960's (1.5ma and 1.5ma)
(!) (Best Single) 12AT6 Sylvania NOS 1960 era (87/60)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.2/9.8ma)
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom used/good 1969 (5.8ma and 11.2ma)
(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom used/good 1964 (10.0/10.2ma)
