Raytheon 6DS4 Nuvistor Vacuum Tube NOS NIB 12F5 Octal but the spine is in

but the spine is in fine shape with no loose pages

new in box GE 6AV5GA and 6AV5GT tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 73 while Tube Two measured 74 where minimum (65%) is 50

Tube Three measured 27

It measured 50/46 where minimum (65%) is 40/40 and 100% is 62/62

Raytheon 6DS4 Nuvistor Vacuum Tube NOS NIB 12F5 Octal but the spine is inThis new old stock, new in box Raytheon 6DS4 nuvistor tube 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