Ray Tubes 6SL7 Select vacuum tube

The 6SL7 is a high-mu variant of the more common 6SN7. Like many tubes, it was used extensively for military purposes during World War II, but slowly fell out of use in the following decades. Starting in the 1970s, renewed interest in Japanese tube audio eventually led to a resurgence in 6SL7 popularity.

Product highlights

The Ray Tubes SELECT Collection offers the best tubes youʼll ever need. It goes above and beyond the baseline to bring out the best in all your favourites.

• Designed and manufactured by a team with decades of experience
• Hand-selected by engineers—only the top tubes make the cut
• Substantially more consistent performance than New Old Stock
• Unlike NOS and most other new production, covered by the Ray Tubes
• One Year Warranty