Brand new Very rare Find here. 6SL7W Tall Bottle Chrome Top NOS Tube. Very few were made with this Design Back in the day
Made with a Low Noise Support Round plates ~ See Photos
Tested 100% strong each side . Guaranteed to work excellent Made 1951 in the USA
I do have a few other 6SL7 NOS tubes I can sell to you for $25 each , but they are not like this High quality design
If Interested please ask . Thank you