We Guarantee this tube to test new with no gas or shorts using. (Hickok Standard Measurements) Or your money back including shipping cost. Our vacuum tubes sold on eBay come with a 1-year replacement Warranty for defects/failures. You must return the tube for warranty service; we pay return shipping. Test procedure We have bogie/reference tubes for all numbers we sell. Reference tube is tested first then the tube listed for sale. This assures the tube you will receive meets industry standards for a new vacuum tube. Our Hickok testers are calibrated monthly to assure accurate test results. |