Polytechnic Research Type 169-A Microwave Waveguide Tuner

Polytechnic Research Type 169-A Microwave Waveguide Tuner

Original Polytechnic Research & Development Co. Type 169-A precision microwave waveguide tuner manufactured in Brooklyn, New York. This U.S. Navy property unit features dual waveguide flanges and a calibrated tuning control for precise microwave signal adjustment. Used in naval radar and microwave research systems, it is a scarce Cold War-era component from a respected military electronics contractor. An excellent display piece for collectors of radar, microwave, and naval electronics. Untested and sold as a collectible display item.