U.S. Navy TS-311B/UP Echo Box

U.S. Navy TS-311B/UP Echo Box — General Radar Use

Original TS-311B/UP Echo Box, marked “For General Radar Use” and manufactured for the Navy Department – Bureau of Ships by Johnson Service Company, Milwaukee, Wisconsin. Includes gray military case, built-in meter, frequency/crystal controls, internal cable leads, and warning/caution labels. Nice radar test equipment piece for WWII/post-war Navy electronics collectors, display, restoration, or parts.

Condition: Good original surplus condition with paint wear, scratches, dust, and age/storage wear. Meter and cable fittings appear present. Untested.