long time ago, maybe in russian journal "Radio" ~198x, there was someone there describing that if one gets certain transistor from particular batch of particular factory/date, and connect it in whatever weird way, will make a full FM radio (or similar-complex-thing).. because they've wronged the yields. No idea how they had figured that out.
But mistakes aside, what would it be if the chips from the factory could learn / fine-tune how to work (better) , on the run..
At my highschool, we had FM radio transmitter on the other side of street. Pretty often you could hear one of the stations in computer speakers in library, so FM radio can be detected by simple analog circuits.
you can detect FM with an AM radio - "slope detection". This was in the back of my head when i typed this comment. A memory of picking up KFI on a tooth filling when licking the lid from a pudding when i was a kid. I had the real silver colored fillings. I used to get zapped, every time, and it was painful. It had to have been the semi-conductive amalgam, my arms acting as a dipole, and my skull and body the ground plane. But ancillary to that, i remembered the little electronic hobby kits we had, and a wire, a resistor, and a speaker was about all you needed to hear KNX 1070, a clear channel broadcast AM station in Orange County, CA.
But mistakes aside, what would it be if the chips from the factory could learn / fine-tune how to work (better) , on the run..