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(!!!!) (Best Quad) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.8/9.5, 8.8/9.4, 9.0/9.3, 9.0/9.4mA) (Highest Gm 1-2% matched)
(!!!!) (Best Raytheon Pair) JAN-5755 Raytheon Black Plates NOS 1979 (1.7/1.8ma and 1.9/1.7ma)
(!!!!) (Best Siemens Pair) EL84 Siemens Halske Germany used/test like new 1971 (48.2ma and 48.5ma) (High Gm)
(!!!!) (Best Siemens Single) CV492=ECC83=12AX7 Siemens Halske NOS 1968 (1.2/1.5ma) (Gm=1800/1900) (phono, mic, preamp)
(!!!!) (BEST SINGLE #1) 5U4GB Raytheon "O" getter NOS 1962 (58/40 and 60/40) (2 in stock)
(!!!!) (BEST SINGLE #1) 5U4GB Raytheon "O" getter NOS 1962 (59/40 and 60/40)
(!!!!) (Best Single #1) 6C10 GE rebranded RCA NOS 1960's (Ampeg / Fender) (1.3ma/1.3ma/1.0ma)
(!!!!) (Best Single #1) 6X5GT Philips Miniwatt Australia NOS 1940's (54/40 and 54/40) 1% section balance
(!!!!) (Best Single #1) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1700/1800) (1.5/1.6ma) (Highest mA and Gm)
(!!!!) (BEST SINGLE #2) 5992=6V6GT Bendix used/very good 1950's (37.6ma) (rare)
(!!!!) (Best Single #2) 6146B GE NOS 1981 (107ma)
(!!!!) (Best Single #2) 6SN7GTB RCA NOS 1957-1958 (8.8/9.6ma)
(!!!!) (Best Single #2) 7581A GE NOS 1979 (87ma)
(!!!!) (Best Single #2) ECC803S=12AX7 Telefunken Qualitex Ulm Germany <> bottom like new 1964 (1.3/1.5ma and Gm=1600/1800)
(!!!!) (Best Single #3) 6146B GE NOS 1979 (98ma)
(!!!!) (Best Single #3) 7581A GE NOS 1979 (76ma)
(!!!!) (Best Single #3) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (12.0/10.2ma)
(!!!!) (Best Single 1956) 12AX7 GE Motorola tall gray ribbed plates "U" getter 1956 like new (Gm=1700/2000 and 1.6/2.1ma)
(!!!!) (Best Single 1956) ECC82=12AU7 Siemens Halske "Long Ribbed Plates" and large/wide "U" getter branded Haltron 1956 (10/9.2ma) (k62 series) (High Gm) (rare)
(!!!!) (Best Single 1957) ECC83=12AX7 Mullard UK long plates "D" getter NOS 1957 (mC1 series) (1.1/1.3ma) (rare)
