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(!!!!) (Best Single #1) 2C51=5670 Sylvania NOS 1970's (9.2/9.0ma) 1-3% section balance
(!!!!) (Best Single #1) 5881 Tungsol branded CBS NOS 1961 (88ma)
(!!!!) (Best Single #1) 6SN7GTB RCA NOS 1957 (10/9.8ma)
(!!!!) (Best Single #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1960 good printing (11.0ma and 10.6ma) (Same Gm)
(!!!!) (BEST SINGLE #1) EF804S Telefunken Germany <> bottom NOS 1961 (4.0ma) (Highest mA and Gm) (V72 / V76 preamp)
(!!!!) (Best Single #1A) 6C10 RCA branded Westinghouse NOS 1971 (Ampeg / Fender) (1.4ma/2.0ma/1.5ma) (Strongest Single)
(!!!!) (BEST SINGLE #2) 2C51=396A=5670 GE NOS "D" getter gray plates 1960 era rebranded National 1970's (8/7ma)
(!!!!) (Best Single #2) 5670W GE JAN NOS 1986 (9.0/9.8ma) 1-5% balance (Highest Gm)
(!!!!) (Best Single #2) 5687WA Sylvania NOS 1960's (34/35ma) (Same 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 1961 (9.6/10ma) (same Gm)
(!!!!) (Best Single #2) 6X5GT Philips Miniwatt Australia NOS 1940's (50/40 and 50/40)
(!!!!) (Best Single #2) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.8/8.0mA)
(!!!!) (Best Single #2) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1960 good printing (10.4ma and 11.0ma) (close Gm) (oldest single)
(!!!!) (Best Single #2) ECC803S=12AX7 Telefunken Qualitex Ulm Germany <> bottom like new 1964 (1.3/1.5ma and Gm=1600/1800)
(!!!!) (BEST SINGLE #2) EF804S Telefunken Germany <> bottom NOS 1961 (3.6ma) (Highest mA and Gm) (V72 / V76 preamp)
(!!!!) (BEST SINGLE #2) EF804S Telefunken Germany <> bottom NOS 1961 (3.6ma) (V72 / V76 preamp)
(!!!!) (Best Single #2) GZ34 Siemens Holland NOS 1961 double "D" getters (57/40 and 58/40) (Matchless, Marshall, Fender, Modwright)
