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