RR Auction Home
Current Auction Is Open For Bidding
Home |Sitemap|Contact Us| Past Auctions  
 How to Bid   Register to Bid   Auctions   Consign   About Us   Featured Lots   Reviews 
Bidder Login
Show Password

New Bidder Registration
Forgot your password?

The Current Auction
Ends December 9th
Steve Jobs + Apple Auction Preview
Begins Dec 10
Advanced Search
By Item Number
Gallery Search
Past Auction Search
How Do I Bid?
What is BidTracker™?
New Bidder Registration
The 30-Minute Rule
Terms and Conditions
New to RR Auction?
About Us
Register to Bid
Jobs at RR Auction
Press Releases
Consign to RR Auction
How to Consign
2019-2020 Auction Calendar
Jan 8
Jan 16
Jan 23
Feb 5
Feb 13
Feb 21
Mar 4
Mar 12
Apr 8
Apr 16
May 13
May 21
Jun 10
Jun 18
Jul 8
Jul 16
Jul 23
Aug 12
Aug 20
Sep 9
Sep 11
Oct 7
Oct 15
Nov 11
Nov 19
Dec 9
Dec 17
Jan 13
Jan 21
Feb 10
Feb 18
Mar 10
Mar 18
  View All Dates & Deadlines

Item 5101 - Apollo CM/LM IRIG Gyroscope Catalog 550 (Apr 2019)

Back To Previous Page
(we are no longer accepting bids on this item)
Minimum Bid: $200.00
Sold Price: $5,067.50 (includes buyer's premium)


Inertial Reference Integrating Gyroscope from the Apollo program, 5″ in length and 2.75″ in diameter, with upper parts marked: "IRIG PREAMP ASSY, 2021785-011, ACSK H102" and "Electron Gyro Suspension Capacitor, 2021503-34 REV B, E52605, T.58.5," with tape to top annotated "10A21." Metal directional label to bottom stamped as "Unit No. 10A21." In very good to fine condition. Three IRIGs were mounted on the Apollo Command Module and Lunar Module IMU stable platform and sensed displacement in three dimensional space. The magnitude and direction of displacement were converted to output signals that drove gimbal torque motors to restore the stable platform back to its ‘nulled’ alignment.

Terms and abbreviations used in our descriptions.


Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge

Important Information

Tips For Consignors


For a complete list of auction beginning and ending dates, check our dates and deadlines page.