(!!!!) (Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.8/8.6ma)
(!!!!) (SINGLE) EL34 Pope Mullard XF2 single halo "O" used/very good 1970 (82ma) (Gm like new)
(!!!!) (Slightly microhonic Single) 5751 RCA Hewlett Packard black plates NOS 1968 (2.4/2.6ma)
(!!!) (Best 5-Star) 5814A=12AU7 GE Electronic Secretary "5 STAR" triple mica NOS 1960 (10.8/10.4ma) (Same Gm)
(!!!) (Best Pair) JRP-5687WA and JAN-5687WA Raytheon bronze plates tests like new 1964 era faded printing (33.4/36.4ma and 33.5/33.0ma)
(!!!) (Best Single 1954) 5814A=12AU7 GE "5 Star" triple mica NOS 1954 (10.2/10.8ma)
(!!!) (Best Single 1960) 5814A=12AU7 GE "5 STAR" triple mica NOS 1960 (10.0/10.4ma) 1-3% section balance
(!!!) (Best Single 1962) JHS-12AX7 Sylvania NOS 1962 (Gm=2600/2500 and 1.8/1.9ma)
(!!!) (Best Single) 5670 RCA NOS 1970 (13/10.6ma) (Highest mA and Gm)
(!!!) (Best Single) EL84 Brimar England NOS 1962 (58.2ma)
(!!!) (Best Value Black Plate single) 6L6GC RCA Conn black plate used/good 1962 (67ma) (Gm like new)
(!!!) (Best Value Single) 5814A GE 5 STAR "O" getter NOS 1960's faded printing (9.6/11.8ma)
(!!!) (Best Value used) 12AU7=ECC82 Mullard UK branded Philips Miniwatt ribbed plates used/good 1962 (8.2/10.4ma)
(!!!) (Best Value) 12AX7A RCA gray ribbed plates "O" getter halo NOS 1965 (1.0/0.8mA and Gm=1600/1400)
(!!!) (Good Value Pair) CK-6080 Raytheon black plates NOS 1962 (60/79ma and 60/76ma)
(!!!) (Good Value Pair) CK-6080 Raytheon black plates NOS 1962 (66/86ma and 73/86ma)
(!!!) (Good Value Pair) CK-6080 Raytheon black plates NOS 1962 (67/62ma and 67/60ma)
(!!!) (Good Value Single) 12AU7 Philips Australia NOS 1970 era (9.6/8.8ma) (same internals as Holland made)
(!!!) (Good Value) 12AX7A RCA gray ribbed plates "O" getter halo NOS 1973 (1.0/0.9mA and Gm=1400/1550)
(!!!) (recommended Pair) 12AU7=ECC82 Mullard UK NOS 1963-1966 (10.8/10.2ma and 11.8/10.7ma) (Same Gm)
