(!!!!) (Best Pair) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1964 copper grid posts (10.6ma/10.2ma and 11/4/10.2ma)

1 low noise tube) ECC82=12AU7 Telefunken Diamond Bottom <> smooth plates NOS   - fairly good printing - copper grid posts

1 tube) 10.6/10.2ma Gm=2300/2200 (B5204228=1964)

1 tube) 11.4/10.2ma Gm=2400/2300 (B2004521=1964)

Good Ma range 8-10ma

Good Gm range 1800-2200