4 Sylvania 7B7 Vacuum Tubes Valves Lot Of Four

These four Sylvania-MANUFACTURED 7B7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 41 for Tube One and 42 for Tube Two. Tubes Three and Four measured 44 and 47, respectively, where minimum (65%) is 43 and 100% is 66.15. These tubes test around the cusp, but should be fine in most applications. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONONIAN GERMAN PACKAGING REGULATIONS -- AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM -- WE NO LONGER SHIP TO GERMAN ADDRESSES FROM JUNE 1, 2022. 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