(!!) (Best Value Pair) 6BL7GTA GE NOS and like new 1960's same build (41.5/43ma and 44/46ma) (Highest Ma)
(!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's 1-3% matched (9.0/9.6ma and 9.0/9.3ma)
(!!) (Best Value Single) 12AX7 Telefunken Germany <> bottom ribbed plates used/good 1960 (0.8/0.8mA and Gm=1400/1400)
(!!) (Best Value Single) 6SN7GTB RCA used/good 1950's (7.0/7.6ma) (Gm the same)
(!!) (Best Value) 5Y3GT Sylvania branded RCA NOS 1961 (60/40 and 70/40)
(!!) (Best Value) 6SN7GTB RCA NOS 1959 side getter (6/8ma)
(!!) (Best Value) EL84 Mitchell Amperex Holland made in Wien, Austria used/good "D" getter 1958 (rX3-A8G) (46.5ma)
(!!) (Best Value) EL84 Philips Miniwatt Import made in Wien, Austria like new "D" getter 1958 (42ma)
(!!) (Good Value Single) CV378=GZ37 Mullard "D" getter used/tests like new 1955 (55/40 and 55/40)
(!!) (Good Value) 12AX7 Siemens Halske Germany rebranded "BOGEN" used/good 1960 (161 Series) (Gm=1400/1500 and 0.8/0.9ma)
(!!) (Recommended Pair) 6CB5A Sylvania branded Dumont NOS 1960's (58ma and 60ma)
(!!) (Recommended Pair) 6CB5A Sylvania branded Dumont NOS 1960's (82.5ma and 85ma)
(!!) (Recommended Pair) 6CB5A Sylvania branded Dumont NOS 1964-1966 (65ma and 66ma)
(!!) (Recommended Pair) 80 GE GT-shape NOS 1960 (56/40 and 62/40 x 2 tubes)
(!!) (Recommended Single) 12AT7=ECC81 Mullard shield logo NOS 1970 (8.0/8.4ma)
(!!) (Recommended Single) 5Y3GT Hytron NOS 1951 (56/40 and 60/40)
(!!) (Recommended Single) JG-5751 GE gray plates double mica "O" getter NOS 1965 (2.1/2.1ma)
(!!) (~ Best Single ~) CEA-5993 Bendix Rectifier NOS 1950's (54/40 and 54/40)
(!!) 5751 Sylvania misbranded 12AX7WA NOS 1960's (1.9/1.9ma)
(!!) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA (1.8/2.0ma)
