(!!!!) (Single 1955) 12AU7 Brimar UK NOS gray ribbed plates "D" getter halo 1955 (8.2/10.4ma)
(!!!!) 6DJ8=ECC88 Philips by Sylvania NOS 1987 mismatched sections (9.6/16ma)
(!!!) (Recommended Pair) 6005W Sylvania JAN black plate clear glass NOS 1971 (45.8ma and 46.6ma)
(!!!) (Recommended Pair) 6005W Sylvania JAN black plate clear glass NOS 1971-1972 (41ma and 41.2ma) 1% matched
(!!!) (Recommended Pair) 6AQ5A Sylvania black plate NOS 1970's (48.5ma and 49.5ma)
(!!!) (Recommended Pair) 6AQ5A Sylvania black plate NOS 1970's (50.5ma and 52ma)
(!!!) 12AX7 BRIMAR England BVA ribbed plates used/good 1960's (0.8/1.0ma and Gm=1400/1500)
(!!!) 12AX7 BRIMAR England BVA ribbed plates used/good 1960's (0.9/1.1ma and Gm=1350/1500)
(!!!) 6EM7 IEC Servicemaster by Hitachi Japan NOS 1968 (1.1ma and 47.5ma)
(!!!) 6GM8=ECC86 Amperex Holland NOS 1975 faded printing (4.0/4.5ma)
(!!!) EL34 Mullard branded Philips NOS XF4 1979 (101.5ma)
(!!) 12AX7WA GE printed 12AX7 B&L used/good 1970's (Gm=12001300) (0.7/0.8ma)
(!!) CV4024=12AT7WA Brimar NOS square black plates 1975 (9.6/14.4ma)
(!!) E80CC=6085 Philips Holland used/tests like new 1967 (6.3/7.8ma)
(!!) EL34 Mullard Philips UK used/strong 1975 (106.5ma)
(!) JAN-6V6GT Sylvania black plate NOS 1976 (37.5ma)
407B Western Electric NOS 1968 (50/26 and 51/26)
6CA7=EL34 Siemens Germany skinny bottle branded CEI NOS 1975 (79ma)
6CA7=EL34 Siemens Germany skinny bottle branded CEI NOS 1975 (85ma)
6FC7=ECC89 Mullard branded Philips NOS 1975 (sold out)