Sylvania 6LU8 Vacuum Tube Valve NOS NIB Milspec Small Logo It measured an almost- perfectly-balanced

It measured an almost- perfectly-balanced 76/77 where minimum (65%) is 56/56

They have short bases

new in box US-made number / type 89 tubes tested to spec on our Paul Hart-calibrated TV7/U

There were many pops and ticks

2 milliamps' plate current / 1810 micromhos

Sylvania 6LU8 Vacuum Tube Valve NOS NIB Milspec Small Logo It measured an almost- perfectly-balancedThis 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