This tube is a vintage Sylvania 6SL7 GT tube with date code 313. This tube has been tested for shorts and leaks and tested very well, it also has very nice Balance.

If you’re interested in other vintage tubes check my other listings as I’m listing thousands of tubes currently because I’ve decided to sell most of my collection.

Feel free to ask me any questions that you have, and thank you for taking a look

22bvauld2