4-27 Medium Mu Triode Tubes. Hickok TV-7 Tested Strong-No Shorts/No Gas For Sale

Listed is 4 previously used 27 ST Triode tubes for use in 1920\'s-30\'s radio equipment. These tubes tested very strong on a Dan Nelson calibrated Hickok TV-7 with no shorts or gas, no loose bases, strong getter material, clean pins and no signs of overheat or misuse. Test results was:1-Sylvania, 42/25, 1-Sylvania 45/25 and 1-CeCo 50/25 and 1- Philco 38/25. 25 is considered minimum good (65%) on a TV-7.This tube sale comes with the guarantee that you can return it if not satisfied. Shipping is USPS Ground Advantage unless otherwise requested and paid for by the customer.Combined shipping is ok, please let me know which sales are to be combined prior to paying and I will invoice you accordingly.International shipping must be to a US distribution center, I will not ship direct to an international destination.