5 Sylvania 25Z5 Vacuum Tubes Valves NOS NIB Shoulder ST-Shape Lot Of Five 17BZ3 T18 black plates and nice hot-stamped

black plates and nice hot-stamped bases

short bases

There are nine new old stock

not included) with Aimee Mann's seminal "Magnolia" album and they sound terrific

WE HAVE HAD A DOZEN OR SO LESS-THAN-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

5 Sylvania 25Z5 Vacuum Tubes Valves NOS NIB Shoulder ST-Shape Lot Of Five 17BZ3 T18 black plates and nice hot-stampedThis lot of five new old stock, new in box Sylvania 25Z5 tubes tested to spec on our Paul Hart calibrated TV7 U. One is milspec. This new old stock, new in box matched pair of GE 6FQ7 6CG7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 80 80 while Tube Two measured 82 84 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have copper support rods;