Integrated Circuit, Dual 3 Input, Apollo Guidance Computer


Display Status:

This object is on display in the Boeing Milestones of Flight Hall exhibition at the National Air and Space Museum in Washington, DC.

Collection Item Summary:

This is a pre-production silicon integrated circuit of the type used in the Apollo Guidance "Block II" computers, installed on the Apoll Command and Lunar Modules. The circuits were designed by the Fairchild Semiconductor Corporation of Mountain View, California, and manufactured by Phbilco, at their Landsdale, Pennsylvania plant. Each computer used several thousand of these chips.

Collection Item Long Description:

Inventory Number


Credit Line

Gift of David Chester


Country of Origin

United States of America


  • base: silicon
  • wires: gold
  • packaging: epoxy


Overall: 2.9 × 2.5 × 0.2cm (1 1/8 × 1 × 1/16 in.)

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum



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