Hytron 7B4 Vacuum Tube NOS NIB Shoulder Style ST These three new old stock

These three new old stock

Tube One measured 50/50 while Tube Two measured 49/54 where minimum (65%) is 25/25 and 100% is 38

new in box matched pair of RCA steel plate 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

new in box RCA 6LY8 tested to spec on our Paul Hart-calibrated TV7/U

Hytron 7B4 Vacuum Tube NOS NIB Shoulder Style ST These three new old stockThis new old stock, new in box Hytron 7B4 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