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(!!) (BEST SINGLE) 6BX7GT Sylvania triple mica NOS 1950's (55/57ma) (1-3% section balance)
(!!) (Best Value Single) ECC85=6AQ8 RCA Canada NOS 1970's faded printing (12.2/13.0ma)
1B5=25S Coronado NOS 1940's (20/14)
(!!!!) (Best Single) 7025 RCA gray pinched plates tests like new 1961 (Gm=1600/1700 and 1.2/1.3mA) (recommended for V1 guitar amp)
6F5 RCA metal can NOS 1950's (1.0ma Gm=1500)
6F5 RCA metal can NOS 1973 (1.1ma Gm=1500)
1B5=25S Ken Rad NOS 1947 (22/14)
(!!) (BEST PAIR #1) EC86 Telefunken Germany <> bottom gold pins NOS 1960-1961 (11.7ma and 12.4ma) (close Gm)
(!) (Single) E86C=EC86 Siemens Germany gold pins NOS 1964 (10.4ma)
(!) (Single) E86C=EC86 Siemens Germany gold pins NOS 1964 (9ma)
(!!) (BEST PAIR #1) EC86 Philips Import by Valvo Germany gold pins NOS 1960 (16.8ma and 17.0ma) (Highest Ma and Gm)
(!!!!!) (Best Single 1953) GL-6072 GE also branded LEAR 5 star triple mica black plates "D" getter halo 1953 like new (3.1/3.0ma) (Same Gm) (V1 guitar amp, mics, Audio Note) 1-2% section balance
CX-12 Cunningham NOS original box 1930's (24/11)
6K8 metal can NOS (4 tubes for $21.99)
6K8 RCA metal can NOS (48/25 and 50/30)
6C8G Raytheon round black plates used/tests like new 1940's (3.6/3.4ma)
(!!!) 12BH7A GE gray oval plates NOS "o" getter 1964 (11.4/10.2ma) (strong Gm)
(!!!) (Best Single #2) E88CC=6922 Siemens Halske Germany NOS 1962 (13.6/14.6ma) 1-5% section balance
(!!!!) (Best Single) 12BH7A Sylvania Silvertone gray oval plates large "D" getter halo 1950's NOS (13.6/12.4ma)
CK-6112 Raytheon NOS 1950's (1 tube only)