320.00 plus shipping.Group of 8 12AT7's that I bought for my Berning TF-10 preamp. the GEC's are from Upscale Audio and have maybe 3 hrs on them. The other 4 are from reputable Audiogoners. All tubes were used for less than 6 hrs. I decided to move on from the preamp, if not, I will put back the Ei that the preamp came with. I will not separate the group.
