Tung-Sol 6BZ8 X155 Vacuum Tube Valve NOS NIB March 13 2021 perfectly-matched pair of Sylvania 12B4A

perfectly-matched pair of Sylvania 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

102/83 and 102/86

but their bottles are

These four GE 3AW2A tubes tested to spec on our Paul Hart-calibrated TV7/U

Sylvania-BRANDED 13GB5 / XL500 tube tested to spec on our Paul Hart-calibrated TV7/U

Tung-Sol 6BZ8 X155 Vacuum Tube Valve NOS NIB March 13 2021 perfectly-matched pair of Sylvania 12B4AThis new old stock, new in box Tung Sol 6BZ8 X155 tube tested to spec on our Paul Hart calibrated TV7 U. 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. 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