Mullard EF86 NOS matched quad in Mullard boxes - bought from Vintage Tube Services. Will also sell them in pairs.
These are rated by Andy as "green dot" tubes, i.e., ultra low microphonics suitable for moving magnet phono stages.
$250 for the quad. $130 each pair. Paypal and Priority Mail shipping/insurance/delivery confirmation to the lower 48 from 11507 included.
All positive rating of 378 on A'gon. under the same user name.
