I have some info and photos of NASA thermoelectric generators in my book, starting on p. 24:
http://lenr-canr.org/acrobat/RothwellJcoldfusiona.pdf The Mars Curiosity explorer uses one: https://solarsystem.nasa.gov/rps/rtg.cfm
I have some info and photos of NASA thermoelectric generators in my book, starting on p. 24:
http://lenr-canr.org/acrobat/RothwellJcoldfusiona.pdf The Mars Curiosity explorer uses one: https://solarsystem.nasa.gov/rps/rtg.cfm