9119

Apollo CM Block II Central Timing Equipment Module

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:400.00 - 600.00 USD
Apollo CM Block II Central Timing Equipment Module

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Auction Date:2022 Apr 21 @ 18:00 (UTC-05:00 : EST/CDT)
Location:15th Floor WeWork, Boston, Massachusetts, 02108, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
Apollo Command Module (Block II) Central Timing Equipment Module, measuring 8 x 5 x 6, manufactured by General Time Corporation. Stenciled in red below the connectors, "Engineering Test Unit," and stenciled on the bottom with part numbers, "MF-456-0041-0082" and "MRDR-A152113-1, 203/98." Scattered marks and dings and some toned adhesive remnants, otherwise fine condition. The module served as a timing reference source for the Apollo Command Module telemetry and communications systems as well as onboard clocks. The Central Timing Unit Equipment provided precision square wave timing pulses of several frequencies to correlate all time-sensitive functions within the Apollo Command Module. It also generated and stored real-time day, hour, minute, and second of mission elapse and time in binary-coded decimal format for transmission to Mission Control in Houston via the Manned Space Flight Network.