PR NOS Raytheon 6AN8A Tubes, USA Boxes,1960s, Ex Sound, Musical, Natural,New

Pr NOS Raytheon 6AN8A Preamp Tubes, 1960s, Boxes, USA, new and balanced on my B&K Mutual Conductance tube tester,. They sound super sweet, open, involving, spacious, transparent, extended, natural, spacious, smooth, musical and natural. They have the incomparable vintage USA design, craftsmanship, attention to detail, performance and performance.. Vintage USA/European tubes are superior to anything that is made today, they sound better, are made better, and last longer. These were used as original equipment tubes by many vintage tube amp manufacturers. The shipping cost includes safe packing, insurance, prompt shipping and tracking number. Buy with confidence, see my feedback. Good listening, SonnY :)