2 National Union NU 12K7 12K7G 12K7GT Vacuum Tubes Valves NOS NIB Lot Of Two February 10 2023 IN PRACTICE THIS MEANS YOU

IN PRACTICE THIS MEANS YOU TAKE ON THE RESPONSIBILITY FOR THE LOSS IF THE PACKAGE IS MARKED AS "IN TRANSIT" OR AS "DELIVERED

I have played it in my Bottlehead Crack headphone amplifier and it sounds great

This new old stock-testing matched pair of Ken-Rad 6V6GT output tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volts for shorts

new in box Raytheon 1H5GT tube tested to spec on our Paul Hart-calibrated TV7/U

shields between triodes to eliminate crosstalk

2 National Union NU 12K7 12K7G 12K7GT Vacuum Tubes Valves NOS NIB Lot Of Two February 10 2023 IN PRACTICE THIS MEANS YOUThis lot of two (one 12K7G and one 12K7GT) National Union 12K7 tubes tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST OF THE TUBES WE SELL ARE OVER 70 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP AS THERE