Sylvania 3J31 Vintage Microwave Radar Tube / Magnetron Assembly – Made in USA

Sylvania 3J31 Vintage Microwave Radar Tube / Magnetron Assembly – Made in USA

Vintage Sylvania 3J31 microwave radar tube assembly, clearly marked “3J31 – Made in U.S.A. – Sylvania.” Features a substantial glass vacuum envelope, mounting flange, RF coupling/tuning hardware, and original Sylvania branded metal assembly. This is a specialized microwave-frequency vacuum tube component associated with vintage radar and related high-frequency electronic equipment. Excellent display piece for a radar, military electronics, or early microwave technology collection. Shows expected age and storage wear. Glass appears intact. Untested and sold as-is.

Tube Crate #1 – Item #33