4 Sylvania 12HG7 12GN7 12GN7A Vacuum Tubes Valves NOS NIB Lot Of Four December 30 2025 new in box RCA-MANUFACTURED

new in box RCA-MANUFACTURED

Both tubes have thin cracks in their bases

These tubes have black and silver bottles

This hardcover book is in very good condition

4 Sylvania 12HG7 12GN7 12GN7A Vacuum Tubes Valves NOS NIB Lot Of Four December 30 2025 new in box RCA-MANUFACTUREDThese 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