(!!!) (BEST PAIR #2) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.2ma and 7.3ma)

1 pair) EF89=6DA6 Telefunken Germany <> Diamond Bottom NOS 1966

1 tube) 7.2ma Gm=3200 faded printing

1 tube) 7.3ma Gm=3100

Tested on Amplitrex

Good Ma range = 7-8ma

Good Gm range = 3000-3500

for:

Telefunken OPUS 6 from 1956
Blaupunkt radio