RCA Number Type 38 #38 Vacuum Tube Engraved Base Shoulder Shape NOS NIB Matsushita new in box GE 21LU8

new in box GE 21LU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box milspec Tung-Sol VT-36 number / type 36 tube tested to spec on our Paul Hart-calibrated TV7/U

They measured 31

This matched pair of Ken-Rad-MANUFACTURED 6K6 6K6GT tubes was tested on our Maxi Matcher 2 with 325 volts on the plates and a bias of -36 volts for shorts

8 milliamps' plate current and measured 2060 micromhos

RCA Number Type 38 #38 Vacuum Tube Engraved Base Shoulder Shape NOS NIB Matsushita new in box GE 21LU8This new old stock, new in box RCA number type #38 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