(!!!) (Best Sylvania Pair) 6JE6C=6LQ6 Sylvania NOS 1970”s (89ma and 87ma)

1 pair) 6JE6C=6LQ6 Sylvania NOS 1970”s

1 tube) 89ma Gm=9300

1 tube) 87ma Gm=9500

Tested on Amplitrex AT1000

Vplate=175V

Vscreen=125V

Vgrid=-25V

Iplate GOOD range 80-100ma

Gm GOOD range 8,500 – 10,000