(!!!) (Best Pair) JHY-6AK5 Hytron black plate NOS 1952 (7.8ma and 7.4ma) (same Gm) Title: JHY-6AK5 Hytron NOS pair

1 pair) JHY-6AK5 Hytron black plate NOS 1952

1 tube) 7.8ma Gm=4500

1 tube) 7.4ma Gm=4500

NOS Ma = 6.5-7.5ma

NOS Gm = 4000-5000

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