6N7GT NOS NU radio audio amplifier vintage vacuum tubes 4 valves tested 6N7G 6N7
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Four (4) 6N7GT National Union vintage vacuum tubes, made in USAtubes have metal smooth plates, clear top, metal base, mica snubbers,tubes tests:78, 78 %78, 78 %78, 78 %78, 78%Price is for all tubes pictured.We test all tubes we sell! We will combine shipping! Check out 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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