WWII U.S. Navy NAF 68304 Beam Filter Audio Control Unit

WWII U.S. Navy NAF 68304 Beam Filter Audio Control Unit

Original WWII-era U.S. Navy Beam Filter control unit marked NAF 68304. Features a multi-position selector for Range, Phone, Both, and Range/Phone filtering with dual headphone-style jacks and attached cable. Used as part of a naval or airborne radio/radar communications system to filter received audio signals. A desirable accessory for WWII Navy electronics, radar, and communications collectors. Untested and sold as a collectible display piece.