2 Sylvania 1291 Vacuum Tubes Valves Industrial Version NOS NIB Lot Of Two 3A3 T27 There is some marking in

There is some marking in the first twenty pages or so

perfectly-matched pair of Sylvania 6SJ7s was tested on our Paul Hart-calibrated TV7/U for shorts

Otherwise it is sold as-is

This lot of eight US-made mesh plate type 36 tubes tested as follows on our Paul Hart-calibrated TV7/U:

2 Sylvania 1291 Vacuum Tubes Valves Industrial Version NOS NIB Lot Of Two 3A3 T27 There is some marking inThese two new old stock, new in box Sylvania 1291 industrial quality tubes 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