Bendix ID-668/FPS-20A Radar Set Performance Indicator

Bendix ID-668/FPS-20A Radar Set Performance Indicator

Cold War-era U.S. Air Force radar test instrument designated ID-668/FPS-20A, manufactured by Bendix Radio Division of Bendix Aviation Corporation under Air Force contract AF 30(635)-4052. Designed as a performance indicator for the FPS-20 series long-range air search radar systems used throughout the 1950s and 1960s for continental air defense. Features original meter marked “Percent Range,” adjustable controls for power output (KW) and noise figure (DB), and retains its original data plate. An excellent display piece for radar collectors, military electronics enthusiasts, and Cold War air defense historians.