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(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (86ma and 92ma)
(!!!!) (Single 1961) 12AU7=ECC82 Mullard BVA UK shield logo NOS 1961 (7.5/9ma) (Gf1 series) (smooth rich sound)
(!!!!) (Single) 12AT7=ECC81 Mullard UK used/tests like new 1968 (10.2/12.2ma)
(!!!!) (Single) 6922=E88CC Penta Labs Hungary used/good 1980 era (10/15ma)
(!!!!) (Single) 6922=E88CC Siemens Halske Germany branded RCA gray shield used 1966 (12/9.2ma)
(!!!!) (slightly microphonic single) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1961 very good printing (10.0/10.8ma) (high Gm)
(!!!!) 5654=6AK5W GE Dumont NOS 1970's (10.2ma)
(!!!) (Best Pair) 5751 GE double mica gray plates NOS 1979-1981 (2.4/2.5ma and 2.3/2.6ma) 1-3% matched (Close Gm)
(!!!) (Best Pair) 6203 GE NOS 1976-1979 (53-54/40 and 54-54/40)
(!!!) (Best RCA single #2) 5687 RCA bronze plates NOS 1976 (31.5/34ma)
(!!!) (Best Single) 12BH7A CBS Oval Black Plates "O" getter NOS 1960 (11/12.5ma)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 burgundy base double large "O" mica (9/10ma) (rare)
(!!!) (BEST VALUE PAIR) 5881 Tungsol tests like new 1957 and 1963 with broken center guide pins - see photo (72.5ma and 68.2ma)
(!!!) (Best Value Single) 12AX7=ECC83 SIEMENS HALSKE GERMANY used/good 1962 (0.9/1.0ma)
(!!!) (Best Value Single) 12AX7=ECC83 SIEMENS HALSKE GERMANY used/good 1966 (0.8/0.9ma)
(!!!) (Best Value Single) 12AX7=ECC83 SIEMENS HALSKE GERMANY used/good 1967 (0.8/0.9ma)
(!!!) (Best Value) 12AU7=ECC82 Daystrom Mullard UK ribbed plates like new 1963 (11.6/10.2ma) (162 series) (smooth presentattion)
(!!!) (Best Value) 12AU7=ECC82 Daystrom Mullard UK ribbed plates like new 1963 (9.0/10.2ma) (162 series) (smooth presentattion)
(!!!) (Good Value Single) 12AU7 Philips Australia NOS 1970 era (9.6/8.8ma) (same internals as Holland made)
(!!!) (Good Value Single) 5U4G=VT-244 RCA used/good 1940's scratches on base (47/40 and 48/40)
