2 National Union NU 117Z4 117Z4GT Vacuum Tubes Valves NOS NIB Lot Of Two LowtechTwoo 8K They have narrow gray plates

They have narrow gray plates and O getters

new in box Hytron 19BG6G tubes tested to spec on our Paul Hart-calibrated TV7/U

(New 6SN7s typically test from 2600 micromhos and the Jackson expresses this as a percentage

new in box Sylvania 10GK6 tubes tested to spec on our Paul Hart-calibrated TV7/U

nicely-matched pair of General Electric 12AU7/ECC82 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

2 National Union NU 117Z4 117Z4GT Vacuum Tubes Valves NOS NIB Lot Of Two LowtechTwoo 8K They have narrow gray platesThese two National Union 117Z4GT tubes tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE 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 PROBABLY HAVE IT. PLEASE