2 National Union NU 117Z4 117Z4GT Vacuum Tubes Valves NOS NIB Lot Of Two LowtechTwoo 8K new in box GE 5

new in box GE 5 Star 5663 premium tube tested to spec on our Paul Hart-calibrated TV7/U

WE HAVE HAD A DOZEN OR SO LESS-THAN-FOUR-STAR REVIEWS OR HAVE LOST A CUSTOMER BECAUSE WE REFUSED TO EITHER ISSUE A REFUND FOR A TUBE THAT WENT BAD AFTER IT HAD BEEN USED OR A BUYER DID NOT LOOK AT THE PICTURES AND/OR READ A DESCRIPTION THOROUGHLY

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

Transconductance measured (From left to right): 42

They have narrow gray plates and O getters

2 National Union NU 117Z4 117Z4GT Vacuum Tubes Valves NOS NIB Lot Of Two LowtechTwoo 8K new in box GE 5These 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