(!!) (Best Pair #1) 6SH7 GE metal can NOS 1976 (12.8ma and 13.2ma) **

1 matched pair) 6SH7 GE metal can NOS 1976 (NK)

1 tube) 12.8ma Gm=5300

1 tube) 13.2ma Gm=5500

Good NOS mA range 10-11ma

Good NOS Gm range 4500-5000