RCA 117Z6 Vacuum Tube Valve NOS NIB 6U7 Septal OSC I have played it in

I have played it in one of my ArtSound 805 monoblocks and it sounds excellent

top mica spacer and a bottom

47 and 48 where minimum (65%) is 40

FOUR-STAR REVIEWS OR HAVE LOST A CUSTOMER BECAUSE I REFUSED TO EITHER ISSUE A REFUND FOR A TUBE THAT WENT BAD AFTER IT HAD BEEN USED OR A BUYER KNEW NOTHING ABOUT TUBE REBRANDING AND CLAIMED THAT SOMETHING MADE BY TUNG-SOL AND BRANDED BY EMERSON WAS MADE BY EMERSON

These tubes have gray coatings from the very tops to within 12 MM of the bases

RCA 117Z6 Vacuum Tube Valve NOS NIB 6U7 Septal OSC I have played it inThis RCA 117Z6 tube is new old stock, new in box and 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