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(!!!) (Best Single 1965) JHS-12AX7WA Sylvania NOS 1965 (1.3/1.5ma and Gm=1700/1800)
(!!!) (Good Value Single) JAN-6189=12AU7WA Sylvania NOS 1960 era in white box (8.6/10ma)
(!!!) (Single) JAN-6189=12AU7WA Sylvania NOS 1968 (8.2/9.4ma)
(!!!) (Single) JAN-6189=12AU7WA Sylvania NOS 1978 (9.2/8.8ma) (same Gm)
(!!!) (Single) JHS-5670 Sylvania NOS 1966 (7.0/6.8ma)
(!!!) JHS-6189=12AU7WA Sylvania NOS 1965 in white box (10/9ma)
(!!!) JHS-6189=12AU7WA Sylvania NOS 1966 in white box (9.5/9.6ma)
(!) JHS-0A2WA Sylvania used/test like new 1966 (1 pair)
