(!!!!) (BEST SINGLE 1985) 12AU7A GE NOS 1985 copper grid posts (9.2/9.4ma) 1-2% section balance

1 low noise tube) 12AU7A GE NOS 1985 (EG) (warm / smooth / sweet sound, not bright)

1 section) 9.2ma Gm=2100

1 section) 9.4ma Gm=2100

Tested on Amplitrex

- Unison Research

- Head-Direct EF1 preamp

- Allen & Heath VF-1 compressor

- Ray Samuels

- Eastern Electric DAC

- Lexicon Signature 284

- Bravo