3 Sylvania 12AZ7 12AZ7A Vacuum Tubes Valves NOS NIB Lot Of Three 12AU7A KY factory around the time

KY factory around the time of the GE takeover of Ken-Rad

30 and 3o where minimum (65%) is 23

They have black T plates

They have 2-30 188-5 and 3-52 188-5 date/provenance codes

3 Sylvania 12AZ7 12AZ7A Vacuum Tubes Valves NOS NIB Lot Of Three 12AU7A KY factory around the timeThese 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