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(!!!) (Recommended Single) 6EU7 RCA NOS 1967 (53/32 and 60/32)
(!!!) (Recommended Single) 6EU7 RCA NOS 1971 (53/32 and 45/32)
(!!!) (Recommended Single) EZ81=6CA4 RFT East Germany NOS 1970's faded printing (50/40 and 50/40)
(!!!) (Recommended Single) PCC88=7DJ8 Siemens Germany NOS 1972 (11.5/12.2ma)
(!!!) (SINGLE) 12AU7 RCA tall black plates "D" getter used/good 1950's (9.8/8.2ma)
(!!!) (Single) 12AU7A RCA clear top NOS 1968 (8/11ma)
(!!!) (Single) JAN-CHS-5Y3WGTA Sylvania NOS 1960 (49/40 and 56/40)
(!!!) 12AU7 RCA tall gray plates "D" getter used/good 1953 (9.2/9.8ma)
(!!!) 12AX7 Sylvania 1960-1965 used/tests like new small mica flake inside tube (Gm=2400/2800)
(!!!) 6EU7 GE NOS pinched gray plates 1970 (48/32 and 50/32)
(!!!) 6EU7 RCA used/good 1963 (38/32 and 52/32)
(!!!) 6V6GT Tungsol black plate coated glass used/good 1940's hairline crack in base (44ma)
(!!) (BEST PAIR) 6EU7 GE NOS 1970-1978 (46-47/32 and 47-47/32) 1-2% matched
(!!) (Best Single) 6BQ5 RCA NOS 1959 (54.5ma)
(!!) (Best Single) 6L6GC GE like new "D" getter 1959 (76ma)
(!!) (Best Value Pair) 12AU7A RCA MEXICO NOS "TOP GETTER" original boxes 1970's (9.2/10ma and 8.7/9.4ma)
(!!) (Best Value Pair) 12AU7A RCA MEXICO NOS "TOP GETTER" original boxes 1970's (9.2/11.4ma and 9.4/10.6ma)
(!!) (Best Value Pair) ECC83=12AX7 EI Yugo Telefunken NOS smooth plates clone rebranded Amperex and National (1.2/1.2ma and 1.2/1.3ma)
(!!) (Best Value Single) ECC83=12AX7 Tungsram Hungary 1980 era branded Amperex NOS 1985 (1.3/1.6ma and Gm=1800/1800)
(!!) (Best Value) 5Y3GT Raytheon Japan by Hitachi NOS 1960's (58/40 and 63/40)