Cold War U.S. Military OS-4A/AP Radar Oscilloscope Test Set Cotton Built on Ruger’s strong frame

Built on Ruger’s strong frame

and loads in the grip

Two gold service stripes on each cuff indicate at least eight years of service

These 9422 commemoratives are becoming harder to find in complete

all removable parts

Cold War U.S. Military OS-4A/AP Radar Oscilloscope Test Set Cotton Built on Ruger’s strong frameCold War U. S. Military OS 4A AP Radar Oscilloscope Test Set CRT Indicator Unit Description: Original U. S. military OS 4A AP radar oscilloscope and test instrument featuring a built in CRT display and extensive control panel for radar, avionics, and electronic systems testing. This highly specialized unit was designed for servicing and calibrating airborne radar equipment and other military electronic systems during the Cold War era. The instrument