Sylvania 38HE7 Vacuum Tube Valve NOS NIB

Sylvania 38HE7 Vacuum Tube Valve NOS NIBThis new old stock, new in box Sylvania 38HE7 tube tested to spec on our Paul Hart calibrated Hickok 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

Tube One measured 72/74 while Tube Two (Zenith-LABELED) measured 74/73 where minimum (65%) is 50/50 and 100% is 77/77

Their internal structures are all the same

Tube One measured 42 while Tube Two measured 45 where minimum (65%) is 46 and 100% is 71

This perfectly-matched pair of RCA gray plate 5763 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

STOLEN AND LOST

please send them to me and I will test it

This offering is for two subminiature spring-loaded X-ray suppression shields and their bases are suitable for 6AU6-size tubes

These are great-looking

new in box Raytheon 6BC7 tubes tested to spec on our Paul Hart-calibrated TV7/U

side harp getters

steel support rods and excellent flashing

This Silvertone 5Y3GT black plate rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts