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Item 2101 - Apollo Block II Display and Keyboard Assembly (DSKY) Screen Catalog 569 (Oct 2019)

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(we are no longer accepting bids on this item)
Estimate: $8,000.00 +
Sold Price: $5,636.25 (includes buyer's premium)

Description


Alphanumeric electroluminescent display screen from a Block II Apollo Display and Keyboard Assembly (DSKY), measuring 3.25″ x 4.5″ x 1″, marked on the reverse: "Indicator, Digital, Electroluminescent, Sylvania SD195A, NASA Part No. 1006315, Ser. No. 1006315." The front of the screen has black text identifying the computer activity status light ("Comp Acty"), program number display ("Prog"), verb code display ("Verb"), and noun code display ("Noun"). Text on the edge reads: "Not to be used in flyable systems." In very good to fine condition, with cracked glass to the lower right corner.

The DSKY was the main interface between an astronaut and the Apollo Guidance Computer (AGC), which controlled the Apollo spacecraft. Each AGC program had a two-digit code displayed on the screen, and commands were entered via a numerical keypad as two-digit numbers in a verb-noun sequence. It was the DSKY that provided the astronauts with critical burn times for engine firings, course corrections, trajectories, and other key calculations vital in getting a crew to and from the moon. The DSKY also reported the program alarm moments before the LM touched down on the lunar surface on the first lunar landing. DSKY units are among the most recognizable and historically significant of all Apollo spacecraft parts—this screen, designed to provide mission-critical information at a moment's notice, is a superb piece of spaceflight history. From the Don Eyles Apollo Computer Collection.

Terms and abbreviations used in our descriptions.

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