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(!!) (#1 12AU7A Pair) 6680=12AU7A GE NOS 1960's 1-2% matched

(!!) (#1 12AU7A Pair) 6680=12AU7A GE NOS 1960's 1-2% matched

$ 34.99

1 low noise pair) 6680=12AU7A GE NOS 1960's green printing copper grid posts (smooth sound) faded printing

1 tube) 10/10ma Gm=2000/2000

1 tube) 10/10.6ma Gm=2000/2100

Matched on Amplitrex

Good Ma range 8-10ma

Good Gm range 1800-2200

 

recommended for:

- Backert Labs Rhumba 1.1

- Unison Research

- Head-Direct EF1 preamp

- Allen & Heath VF-1 compressor

- Ray Samuels

- Eastern Electric DAC

- Lexicon Signature 284

- Bravo

See more: vacuum tube
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