Old vintage tubes up for bid and sold as is. Old and original guaranteed. Shows wear and use as shown. None have been tested. I have no way to test them. I have not cleaned them. Sold for parts or fix up. No returns, happy bidding! Buyer to pay actual shipping, payment due within three days. Lot is for the 5 tubes as shown with the other parts, they may have come out of the same item, they were found together.