Some people say a EMP from a Carrington Event type of solar flare won’t be a problem these days but I have my doubts. Something that set telegraph station on fire isn’t going to melt PCBs?
Today we have overload circuit breakers and fuses in the electrical system.
Most, if not all, modern semiconductors have built-in ESD HV protection circuitry on their inputs and outputs.
The old stuff will go poof, but the new stuff won’t be as vulnerable.....................
I think it very much will be. Most cars can’t handle something like that. Maybe modern transformers can handle it.
If my memory serves me correctly, there was a major CME in 1978 that exploded a lot of transformers in Canada.
“Something that set telegraph station on fire isn’t going to melt PCBs?”
No it won’t. Not directly anyways. It is the miles of telegraph wires that were the problem. Miles of wire being cut by the same magnetic wave generated a very large current.