Type 78 Sylvania Matched Pair Tubes Mesh and 50 similar items

This very good testing matched pair Sylvania Type 78 tubes with mesh plate, same codes and bottom foil D dimple getters was tested in our Jackson 648 and they measured: Tube One: 86 (Sylvania and leaf logo stenciled on base with code Z0R; 78 on glass; top metal cap loose and can be repaired by buyer) Tube Two: 84 (Sylvania and leaf logo stenciled on base with code Z0R; 78 on glass; remnants of original retail label still affixed to glass) Good range is from 70 - 130 on the Jackson. These test 86% 84%. Tubes ships via United States Postal Service (USPS) Ground Advantage with tracking for domestic U.S. sale; Priority Mail is an option if you wish your package delivered quicker. International orders ship via International Shipping service. Package weighs ten ounces (10 oz). Check out other tubes in my store for your equipment needs. Combined shipping always welcomed. TUBES ARE GUARANTEED GOOD AND IN WORKING ORDER AT SHIPMENT. TRANSIT VIA POST CAN DAMAGE TUBES. THIS IS NO FAULT OF OURS BUT THE THIRD PARTY ENTITY THAT IS DELIVERING ITEM(S) TO YOU, I.E, USPS, UPS, FEDEX, YOUR NATIONAL CARRIER IF INTERNATIONAL, ETC. PLEASE INSURE THEM! WE CANNOT GUARANTEE FAILURES ON YOUR EQUIPMENT AFTER POWER UP AS THERE IS NO WAY TO ASCERTAIN HOW TUBES WILL INTERACT WITH YOUR ELECTRONICS; NOR IS THERE A WAY TO DETERMINE WHETHER THEY MAY HAVE FATAL FLAWS IN TUBES THEMSELVES! THESE ARE USED VACUUM TUBES AND TIME MAY HAVE TAKEN A TOLL ON THEM OVER THE MANY YEARS SINCE THEY WERE MANUFACTURED. WE CAN ONLY TEST FOR THE PARAMETERS MENTIONED ABOVE IN ONE OR MORE OF THE FOLLOWING EQUIPMENT WE USE FOR MEASURING: HICKOK 600A, HICKOK 800, MAXI MATCHER MAXI MATCHER 2.