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(!!!!) (Best Single) 7025 RCA gray pinched plates tests like new 1961 (Gm=1600/1700 and 1.2/1.3mA) (recommended for V1 guitar amp)
(!!!!) (Best Value Single) 12AX7 Westinghouse gray pinched plates "D" getter like new 1960 faded printing (Gm=1800/1800 and 1.4/1.3mA) (same plate structure as 5751)
(!!!) (Best Value) 7025 RCA gray pinched plates used/good 1961 (Gm=1400/1800 and 0.8/1.5mA) (recommended for guitar amp)
(!!!) (Best Value) 7025 RCA gray pinched plates used/good 1961 era (Gm=1300/1400 and 0.6/0.8mA) (recommended for guitar amp)
(!!) (Best Single) 12BH7A Westinghouse Canada ribbed plates NOS 1967 (12.2/14.2ma)
