(!!) (Best Sounding EF89) EF89=6DA6 Telefunken Germany <> bottom NOS 1960”s (5 in stock)

5) EF89=6DA6 Telefunken Germany <> Diamond Bottom NOS 1960”s

Tested on Amplitrex

Good Ma range = 7-8ma

Good Gm range = 3000-3500

for:

Telefunken OPUS 6 from 1956
Blaupunkt radio