(!!!!!) (BEST Pair) ECC81=12AT7 Mullard UK NOS 1970-1973 (9.0/9.2ma and 8.8/9.8ma)
By Tube World
$ 124.99
1 low noise pair) ECC81=12AT7 Mullard NOS 1970-1973 made in Blackburn plant, UK
1 tube) 9.2/9.0ma Gm=5200 and 5200 (1973) branded AMPEREX
1 tube) 8.8/9.8ma Gm=4900 and 5100 (1967) branded PHILIPS
- Tested on Amplitrex AT1000
- Low Noise and not microphonic
- Good Ma range 8-10ma
- Good Gm range 5000-5500
- Sweet and Smooth 12AT7
See more: vacuum tube
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 (BEST Pair) ECC81=12AT7 Mullard UK NOS 1970-1973 (9.0/9.2ma and 8.8/9.8ma) "Pin It")