Description

Selling Sylvania 6GU7 vacuum tube(s), preamp tubes. Selling up to 3 individual tubes, as a lot or individually. 4th tube in pic already sold. Sold to me "tested At 80/76 or better with a minimum being 46/46 on a calibrated Precision 612 vacuum tube tester," and I used approx. 10 hours each in my integrated amp. Sound great. No noise or microphonics. Clean tubes, although labels are worn off. Comparable in sound to 6CG7 or 6SN7, but maybe a little brighter. I used in an amp designed around the 6SN7. You should check to make sure they would work in your amp if you intend to use as a drop-in replacement. Whether using as a drop-in replacement or designing a kit amp, the 6GU7s are much cheaper than those other tubes, which have gone way up in price and are becoming more scarce. I am an enthusiast, not a dealer. I welcome questions and discussion. These are used vintage electronic components sold as-is.