Raytheon 5U4 5U4GB Vacuum Tube Valve Rectifier Black Plate NOS-Testing

This new old stock-testing Raytheon 5U4GB rectifier tube tested 56/56 in sections One and Two, respectively, on our Paul Hart-calibrated TV7 where minimum (65%) is 40. It has a medium bottle; 2 side O getters; a round coarsely-crenelated top mica spacer and a rectangular, finely-crenelated bottom mica spacer; black plates; excellent flashing and a K20 date code. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONONIAN GERMAN PACKAGING REGULATIONS -- AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM -- WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY HAVE IT. PLEASE ALSO SEE OUR 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 OF THE TUBES WE SELL ARE OVER 50 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP AS THERE IS NO WAY TO DETER