7581A NOS GE radio audio amplifier vacuum tubes 2 valves tested 7581 6L6GC KT66
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Two (2) 7581A General Electric vintage vacuum tubes, made in USA,all are grey ribbed plates, clear top, side rectangular getter,tubes test: 96, 92 %Price is for all tubes pictured.Tube did not have original box, I assume it as used.We test all tubes we sell! We will combine shipping! Checkout my other tubes!Tubes are tested for emission, as well as for shorts, life test and grid leakage on calibrated Sencore Mighty Mite tube tester,on scale 1-120, good quality on my Sencore starts at 70.
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