4 Sylvania 12HG7 12GN7 12GN7A Vacuum Tubes Valves NOS NIB Lot Of Four December 30 2025 They have NU 188-5 and

They have NU 188-5 and 3-09 188-5 date/provenance codes

new in box GE 6JF6 tubes tested to spec on our Paul Hart-calibrated TV7/U

gray plates and an anode radiator for cooler operation and longer life

They have black plates

This lot of five US-made black plate

4 Sylvania 12HG7 12GN7 12GN7A Vacuum Tubes Valves NOS NIB Lot Of Four December 30 2025 They have NU 188-5 andThese for new old stock, new in box Sylvania 12HG7 12GN7 12GN7A 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 FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION