(!!) (Best used single #3) 5998 Tungsol branded IBM black plates used/good 1960 rattle inside base (70ma/92ma) (strong Gm) Title: 5998 Tungsol

5998 Tungsol branded IBM black plates used/good 1960 in white box – small rattle inside base – dried glue particles

1 section) 70ma Gm=12,300

1 section) 92ma Gm=13,600

Good Ma range 60-80ma

Good Gm range 10,000 – 12,000