5 Sylvania 25Z5 Vacuum Tubes Valves NOS NIB Shoulder ST-Shape Lot Of Five 17BZ3 T18 There are nine new old

There are nine new old stock

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

Tube Five has been repaired

short bases

It has a thin

5 Sylvania 25Z5 Vacuum Tubes Valves NOS NIB Shoulder ST-Shape Lot Of Five 17BZ3 T18 There are nine new oldThis 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;