3 Sylvania 12BR7 Vacuum Tubes Valves NOS NIB Lot Of Three 5V4 Octal Unfortunately I can't tell you

Unfortunately I can't tell you how they sound as we do not have any equipment that uses them nor do we have adapters at this time

respectively where minimum (65%) is 40/40 and 100% is 62/62

This tube is built like a tank and in great shape as well

top O getters

new in box RCA 6DN3 tubes tested to spec on our Paul Hart-calibrated TV7/U

3 Sylvania 12BR7 Vacuum Tubes Valves NOS NIB Lot Of Three 5V4 Octal Unfortunately I can't tell youThis lot of three Sylvania 12BR7 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 UP TO $250 IN VALUE.