Up for sale here is this matched set of 5 NOS NIB vintage RCA 6SN7GT vacuum tubes, Made in USA with matching 026 date codes, for the 26th week of 1950. These are incredibly rare tubes and will sound amazing. The boxes are in good shape but do have some damage here and there and one has some clear tape on it. These have smoked/gray glass and staggered black plates.

I have more tubes and other vintage electronics listed--feel free to take a look!

I tested these on my calibrated B&K 747B tube tester, and they tested at 67/66, 66/71, 68/67, 67/68, and 74/75, with no shorts or grid emissions, on a scale of 0-120, where 65 is minimum good and most NOS 6SN7s test in the 60-80 range. These are nice strong balanced tubes, and are guaranteed to work well for you. Please see my pictures for details.

US shipping and handling is $12, and international is $28. If you have any questions, please ask.