Sylvania 8EB8 8GN8 Vacuum Tube Valve NOS NIB 3CA3 Plate Cap 31 and 39 where minimum

31 and 39 where minimum (65%) is 23

Transconductance measured an underwhelming-but-well-balanced 40/42 where minimum (65%) is 50/50 and 100% is 77/77

It was made in Germany

Tube One has some oxide flaking

Sylvania 8EB8 8GN8 Vacuum Tube Valve NOS NIB 3CA3 Plate Cap 31 and 39 where minimumThis new old stock, new in box Sylvania 8EB8 8GN8 tube tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONIAN 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