4 Westinghouse 6S4 6S4A Vacuum Tubes Valves NOS NIB Lot Of Four T19 This matched pair of Raytheon

This matched pair of Raytheon 6AK5 black plate tubes was tested on our Paul Hart-calibrated TV7/U

This RCA 24LQ6 tube tested 85 on our Paul Hart-calibrated TV7/U where minimum is 54 and new is 100

Transconductance measured 74 for Tube One and 76 for Tube Two where minimum (65%) is 58

milspec GE JG-6X4WA tested to spec on our Paul Hart-calibrated TV7/U

new in box

4 Westinghouse 6S4 6S4A Vacuum Tubes Valves NOS NIB Lot Of Four T19 This matched pair of RaytheonThis lot of four new old stock, new in box Westinghouse 6S4A 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