Amperex 9ED4 Vacuum Tube NOS NIB May 29 2025 This Ken-Rad 1C77G tube tested

This Ken-Rad 1C77G tube tested to spec on our Paul Hart-calibrated TV7/U

hydrofluoric acid-etched GE provenance dots and excellent flashing

It teats below spec but should work fine in many applications

These nine National Union number / type 27 tubes tested as good on our Paul Hart-calibrated TV7/U

This tube has black plates

Amperex 9ED4 Vacuum Tube NOS NIB May 29 2025 This Ken-Rad 1C77G tube testedThis new old stock, new in box Amperex 9ED4 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 UP TO $250