Sylvania CHS 274B Rectifier Tube, US Navy, 1943 Black Plates, D Getters, Ex Sound, Quality, Craftsmanship, Performance 1943

Vintage Sylvania CHS 274B rectifier tube, 5U4 Equivalent, 1943, Military Spec US Navy, USA. It has the incomparable vintage 1940s Military Spec design, craftsmanship, attention to detail, and performance that only vintage USA 274 type tubes can offer. It tests strong and balanced on my calibrated Mutual Conductance Tube tester. Both sides test over 880 where 640 is minimum good. Original box, inner box, exceptional. The shipping cost includes safe packing, insurance, prompt shipping and tracking number. Buy with confidence, see my feedback. Good Listening, SonnY :)