This is a New Old Stock (NOS) tube from military surplus, originally sealed and never opened until the box was carefully unsealed solely to photograph the unused tube inside. The tube itself has never been installed or used and remains in original, unused condition.

The ASB-4 radar system was employed in U.S. Navy aircraft during the mid-20th century, making this a highly desirable piece for military electronics collectors, aviation historians, and vintage radar enthusiasts.

• Manufacturer: RCA

• Application: Navy Aircraft Radar Equipment – Model ASB-4

• Component Type: Spark Gap Vacuum Tube

• Date: 1960

• Condition: New Old Stock (NOS)

• Original military packaging included

• Authentic U.S. Navy surplus item

Due to the specialized nature of this component, it is being sold as-is. Please review all photos carefully to verify markings, condition, and original packaging.