Sylvania 35Y4 Vacuum Tube NOS NIB

Sylvania 35Y4 Vacuum Tube NOS NIBThis new old stock, new in box Sylvania 35Y4 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

They measured 46/53

This pressing has lightly-moderate surface noise audible in quiet passages and barely-audible in moderate passages and louder

Tube One measured 32 while Tube Two measured 36 where minimum (65%) is 36

new in box US-made 45Z3 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box GE milspec 7A4 tube tested to spec on our Paul Hart-calibrated TV7/U

copper support rods and bottom D getters

The spine is in fine shape with no loose pages and the dust jacket has only very-minor nicks and tears

74 and 80 where minimum (65%) is 52 and 100% is 80

GM-BRANDED 6SK7 tested as good on our Paul Hart-calibrated TV7/U

new in box RCA 12AF3 tubes tested to spec on our Paul Hart-calibrated TV7/U

excellent flashing and round

They measured 51/49 and 52/49 where minimum (65%) is 40/40 and 100% is 62/62