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Post by n2maniac on Feb 3, 2017 8:39:35 GMT
Simplest, but going to be very limited in capability. Also, there are limits on how far vacuum tubes scale down (the tubes have to hold a temperature gradient to work). SiC components are typically rated to 450K or so. It is a long cry from 740K. Probably no on solar? The heat also pretty-much makes it a non-starter. Vacuum channel transistor Looks like the current state of the art for tiny vacuum tubes is less than 1um square. Should be small enough to re-create any NMOS microprocessor. Built with tungsten wires on sapphire or diamond, I bet it'd happily operate while glowing. 740K would be a cake walk. NASA appears to be considering solar power for a Venus land sailing rover. Also sounds like NASA already has a solution for hot running electronics. The 450K commercial temperature limits on SiC devices is likely a limit of the standard plastic package, solder, and PCB. Use a ceramic (or glass) and metal package and SiC (or even Silicon) electronics may work just fine at 740K. *throws out pages to hypothesis* Those are really great articles. Hmm, looking up diffusion temperatures and lab tests for SiC it is not unreasonable to assume that it could be done for 740K (definitely some hurdles to making a useful device, but not necessarily show stoppers). Were any specifics published on the solar cells?
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Post by kjakker on Feb 3, 2017 22:47:22 GMT
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Post by vegetal on Feb 4, 2017 15:03:53 GMT
This thread turned out better than expected! Sailing rovers.... I would never expect that.
I thought about using old school style electronics, but I had no idea about the feasibility of it for controlling a complex probe.
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Post by lawson on Feb 8, 2017 17:10:18 GMT
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