3 Sylvania 12AZ7 12AZ7A Vacuum Tubes Valves NOS NIB Lot Of Three 12AU7A new in box Sylvania 12AV7

new in box Sylvania 12AV7 dual triodes tested on our Paul Hart-calibrated TV7/U

Sorry I cannot say how they sound

They have black T plates

new in box matched trio of GE-MANUFACTURED 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

rounded dark-gray plates

3 Sylvania 12AZ7 12AZ7A Vacuum Tubes Valves NOS NIB Lot Of Three 12AU7A new in box Sylvania 12AV7These three new old stock, new in box Sylvania 12AZ7 12AZ7A tubes tested to spec on our Paul Hart calibrated TV7 U. One is a 12AZ7 while the other two are 12AZ7As. 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