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T O P I C R E V I E Wgoose77Not a lot of info on this listing for an ISS solar cell. I emailed the seller and they replied it is a surplus cell that was made for but not used on the ISS. The last of the seven pictures include a part tag from Heliotek listing a date of May 1964.SpaceAholicLast tag is not affiliated with the offered cells shown in preceding images. I have purchased one these and am comfortable with authenticity.Robert PearlmanFor comparison, here is a prototype International Space Station solar cell from Lockheed Martin that was part of the gift bags from the premiere of the IMAX movie "Space Station 3D" at the National Air and Space Museum in 2002.thisismillsNote that there is one difference between the solar cell on eBay and the one shown in Robert's presentation, the number of rings around each connector.It would be interesting to confirm which version(s) of the cell is on the station. Additional photos and specifications for this cell design can be found here.SpaceAholicISS cell design evolved to net efficiency gains so there are several variants floating around associated with that effort. Figure 10b in this pdf shows the three-ring derivative under test (figure 6 also a more complete array with the three-ring). The eBay listed cells I don't believe are flight grade but offer a relatively inexpensive opportunity to acquire program affiliated technology (though I see the seller has raised the price).
The last of the seven pictures include a part tag from Heliotek listing a date of May 1964.
It would be interesting to confirm which version(s) of the cell is on the station.
Additional photos and specifications for this cell design can be found here.
The eBay listed cells I don't believe are flight grade but offer a relatively inexpensive opportunity to acquire program affiliated technology (though I see the seller has raised the price).
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