Mullard 6EC4 6EC4A EY500 Vacuum Tube Valve NOS NIB Yello 1980-1985 LP new in box US-made National

new in box US-made National 2N688 rectifiers

This beautiful matched pair of engraved base Philco 6H6G tubes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box Sylvania 6BX7GT tube tested to spec on our Paul Hart-calibrated TV7

This matched pair of milspec National Union VT-107-A / JAN-CNU-6V6-GT gray glass output tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volts for shorts

new in box RCA 36MC6 / 36MC6A tubes tested to spec on our Paul Hart-calibrated TV7/U

Mullard 6EC4 6EC4A EY500 Vacuum Tube Valve NOS NIB Yello 1980-1985 LP new in box US-made NationalThis new old stock, new in box Mullard MANUFACTURED, Sylvania BRANDED 6EC4A EY500 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