RCA 5AM8 Vacuum Tube Valve NOS NIB 6BK7 6BK7B NOS NIB Tube One measured 73/74 while

Tube One measured 73/74 while Tube Two measured 78/75 where minimum (65%) is 50/50 and 100% is 77/77

outstanding flashing and a 43-C2 date code

Two are milspec and two are civilian

new in box and test 15

This lot of four North American-made number 78 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

RCA 5AM8 Vacuum Tube Valve NOS NIB 6BK7 6BK7B NOS NIB Tube One measured 73/74 whileThis new old stock, new in box RCA 5AM8 tube tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE 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 PROBABLY HAVE IT.