(!!) (Best Sounding EF89) EF89=6DA6 Telefunken Germany <> bottom NOS 1960's (10 in stock)
By Tube World
$ 33.99
10) 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
See more: vacuum tube