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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.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type EQUIPMENT-Electronics Manufacturer Philco Corp.
 Dimensions Overall (Larger case): 5.7 × 5.1 × 2.2cm (2 1/4 × 2 × 7/8 in.)
Overall (Smaller case): 3.5 × 2.9 × 1cm (1 3/8 × 1 1/8 × 3/8 in.)
Overall (Rectangular circuits): 1.9 × 0.6 × 0.2cm (3/4 × 1/4 × 1/16 in.)
Overall (Larger circuit): 2.9 × 2.5 × 0.2cm (1 1/8 × 1 × 1/16 in.)
 Materials Silicon
Gold
Epoxy
Plastic
Ink
 Inventory Number A20170004000 Credit Line Gift of David Chester Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.