Sylvania 5U4 5U4GB Vacuum Tube Valve Rectifier

This Dumont-Emerson-BRANDED, Sylvania-MANUFACTURED 5U4GB rectifier tube tested 110%/114% on our Jackson 648 Mutual Conductance tube tester. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND/OR CALL OR TEXT US AT 202-372-6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING -- EXCEPT MEDIA MAIL -- ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN VALUE. IF AN ITEM IS MARKED "DELIVERED," AND YOU HAVE NOT ACTUALLY RECEIVED IT, THE FIRST STEP IS FOR YOU TO CONSULT YOUR MAIL CARRIER TO GET THE EXACT COORDINATES OF THE DELIVERY AND ARRANGE FOR YOUR ITEM'S RETRIEVAL. IF IT APPEARS THE ITEM HAS ACTUALLY BEEN STOLEN, IT IS YOUR LOSS AND YOUR RESPONSIBILITY TO FILE A REPORT WITH THE POSTAL INSPECTOR. ETSY MAY REIMBURSE YOU EVEN IF IT WAS STOLEN, BUT THAT DEPENDS ON THE LUCK OF THE DRAW. 2. MOST OF THE TUBES WE SELL ARE OVER 70 YEARS OLD. WE