Lord 342 said:I really loathe to outright say you're wrong, Rosh, but Fallout technology is almost all Vacuum tubes, which are highly resistant to EMP. EMP would not effect a PiPBoy, or one of the big Tube-based mainframes.
Here's where I say that while vacuum tubes are millions of times more resistant to EMP, a hell of a lot moreso than semiconductor circuitry, there is still a lot of other circuitry that is not a vacuum tube to be concerned with.
Transformers can do really funky current changes to the other components under the effects of EMP, though most of the time they will just burn out. With lower amperage devices comes lower tolerance of the circuitry as the tube used doesn't have the size and load balancing to absorb the excess current spikes. Microelectronics, in whatever form, are highly susceptible to EMP, and not just because of the core of the circuitry. DC circuit components would pop like popcorn as resistors try to become filaments, and AC circuits would load to the point where the current is powerful enough to try and arc through what should normally be a DC open in a capacitor. The smell of burning dielectric is very distinctive.
Scientists and engineers knew about the effects of EMP before there were semiconductor ICs. An excerpt from one of my favorite military reports on this subject:
The military first became aware of EMP in the late 1950's and early 1960's. The concept was not entirely new, as it had been predicted as early as 1945 during the Trinity tests at Alamogordo, New Mexico that a nuclear explosion would generate some type of electromagnetic field. A more detailed under-standing of the force and type of electromagnetic field generated by this type of explosion was discovered during the Fishbowl series of high-altitude atmospheric tests which were conducted in the Johnson Islands. Even during these tests, due to the sophistication of their equipment, the scientists were able to detect only limited effects. However, in Honolulu, Hawaii, 800 miles away*, the street lights and power lines broke down and burglar alarms rang throughout the city.
Research attributed these effects to EMP which came from the high altitude atomic bursts at Johnson Island.11 Further testing of nuclear weapons at various altitudes was planned in order to further evaluate the effects of EMP but had to be stopped after high altitude nuclear testing was banned with the signing of the Test Ban Treaty.
* - The nukes used in Operation Fishbowl were comparitively weak to conventional weapons, and could throw out that kind of effect. I found some movies on those, too, with the megatonnage used, here. Fat Man and Little Boy were in the 12-22 kilotons range, the highest test was 58 megatons. Many fiction writers of that time then went along that scale and made it even larger, because as the Bush administration knows, nothing sells like a bit of good ol' terror to keep the people riveted.
Anyways I'm not saying the world should be thick with them like it is now; obviously there is a certain something that goes into maintaining even a hyper-rugged contraption like a PiPBoy that your average farmer or raider won't have; or the capabilities of a PiPBoy are useless to him so he'd rather trade it off so he can eat. What I'm really saying is just that the PC should have one so it can be maintained as the interface, and that they're common enough, that for story/interface reasons, the PC can have one.
I agree, the PC and perhaps a select few others who had the time/resources to get such devices. I still disagree about PiPs being common, as you would also notice a lot more conventional electronics of that type elsewhere in the world, but don't. That is especially notable given the state of the universe before the Great War, with Mr. Handee's, Corvegas, how you have to fix the Highwayman, and much more.
As the only electronic parts that really survived the war have been originating from a Vault or otherwise shielded place, I think most of the surface was considered fried and electronically dead. The whole "silicon semiconductor was never invented" kind of means that the world's electronics would have been otherwise perfectly fine if the presence of vacuum tubes meant that no EMP affected the electronics.
Something else to think about:
The phenomenon of EMP is one resultant of an atmospheric nuclear detonation which can cause an emission of electrons with a peak of up to 50,000 volts per meter. For example, a detonation at an altitude of 200 miles above the central United States would bathe the entire United States and parts of Canada and Mexico in EMP.
I doubt even a tube stereo amp could take the current surge from ~50kv/m³.