Sylvania 6LU8 Vacuum Tube Valve NOS NIB Milspec Small Logo Tube One measured 28 while

Tube One measured 28 while Tube Two measured 29 where minimum (65%) is 22

new in box (for Tube One) matched pair of GE-MANUFACTURED 12SL7 / 12SL7GT dual triodes was tested on our Pau Hart-calibrated TV7/U for shorts

2 milliamps' plate current / 1810 micromhos

This softcover book is in very-good condition

Sylvania 6LU8 Vacuum Tube Valve NOS NIB Milspec Small Logo Tube One measured 28 whileThis new old stock, new in box Sylvania 6LU8 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