LOT #52331 |
Sold on Nov 12, 2014 for: Not Sold
Apollo Command Module Environmental Control System Hardware: Five Water-Glycol Temperature Sensors, AiResearch Part 820980 (Co... (Total: 3 )
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Description
Apollo Command Module Environmental Control System Hardware: Five Water-Glycol Temperature Sensors, AiResearch Part 820980 (Contract NAS-9-150). Five small sensors, 0.75" in diameter, all mounted in various configurations into three assemblies. All have metal ID plates with four bearing the part number "820980-4-1" and the other "820980-2-2". Included are several pages copied from a 1973 abstract prepared by AiResearch for the NASA MSC titled "Environmental Control System Transducer Development Study" regarding these sensors. The purpose as stated: "The water-glycol temperature sensor is used to sense the temperature of water-glycol coolant and exhibits a change in resistance in accordance with change in temperature. These units consist of a metal housing containing two or more thermistor probes, one of which is in operation and the rest of which are in standby redundancy." Very fine.Auction Info
2014 November 12 Space Exploration Signature Auction - Dallas #6129 (go to Auction Home page)
Auction Dates
November, 2014
12th
Wednesday
Bids + Registered Phone Bidders: 0
Lot Tracking Activity: N/A
Page Views: 730
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