3 General Electric GE 4BQ7 4BQ7A Vacuum Tubes Valves NOS NIB Lot Of Three January 21 2026 new in box Sylvania 6S4A

new in box Sylvania 6S4A tubes tested to spec on our Paul Hart-calibrated TV7/U

These three Raytheon 6C5s were tested on our Paul Hart-calibrated TV7/U for shorts

41 and 41 where minimum (65%) is 25

This Sylvania milspec / industrial 5814 / 12AU7 / ECC82 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

3 General Electric GE 4BQ7 4BQ7A Vacuum Tubes Valves NOS NIB Lot Of Three January 21 2026 new in box Sylvania 6S4AThis lot of three new old stock, new in box GE 4BQ7A 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 COVERS ITEMS