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(!!!) (Recommended Pair) ECC81=12AT7 Mullard UK NOS 1970-1971 branded Amperex an Adzam (9.6/13.4ma and 9.8/14.4ma)

By Tube World

$ 119.99

1  low noise pair) ECC81=12AT7 Mullard UK NOS 1970-1971

1 tube) 9.6/13.4ma Gm=5100/5900

1 tube) 9.8/14.4ma Gm=5400/6400

  • Tested on Amplitrex AT1000
  • Low Noise and not microphonic
  • Good Ma range 8-10ma
  • Good Gm range 5000-5500
(Sweet and Smooth 12AT7) 

(rich midrange, lots of harmonic structure, good bass)

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