Tung-Sol 6BZ8 X155 Vacuum Tube Valve NOS NIB March 13 2021 Sylvania-BRANDED 13GB5 / XL500 tube

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

Tube Four (triode): 41

Transconductance measured 2100 micromhos for Tube One and 2175 for Tube Two

Bottles: medium height

This new old stock-testing matched pair of RCA Radiotron 805 output triodes was tested on our Paul Hart-calibrated TV7/U with 180 volts on the plates and a bias of 0 volts for shorts

Tung-Sol 6BZ8 X155 Vacuum Tube Valve NOS NIB March 13 2021 Sylvania-BRANDED 13GB5 / XL500 tubeThis 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