(!!!!) (Best Value Single) ECC82=12AU7 Telefunken Germany <> Bottom ribbed plates NOS 1969 faded printing (10.8/10.0ma) (Highest Gm) Title: 12AU7 Telefunken

1 low noise tube) ECC82=12AU7 Telefunken Germany <> Bottom ribbed plates NOS 1969 faded printing – highest Gm

1 section) 10.8ma Gm=2500

1 section) 10.0ma Gm=2500

Good Ma range 8-10ma

Good Gm range 1800-2200