(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.2/9.8ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.8/10ma)
(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania JAN NOS 1960's (56ma and 56ma)
(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania JAN NOS 1960's (62ma and 63ma)
(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (54ma and 54.5ma)
(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (62ma and 61.5ma)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (48.5ma and 48.6ma)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (51ma and 52.5ma)
6BQ6GTB=6CU6 Sylvania NOS 1960's (25 in stock)
71A Sylvania branded Hytron NOS 1947 (22ma)
JHS-12AU7 Sylvania "black plates" with "D" getter used/mis-matched sections (7.6/12ma)
