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

shields between triodes to eliminate crosstalk

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

They measured 84/74 for Tube One and 87/73 for Tube Two where minimum (65%) is 57/57 and 100% is 88/88

likely Tung-Sol-MANUFACTURED) measured 31 while Tube Two (no silkscreening 6AK5-LABELED

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