alt Hacker NewsDuring WWII, Germany used magnetic amplifiers in many different kinds of military equipment, because they had the advantage of being much more rugged and reliable than the electronic devices available at that time.
After WWII, the technology of magnetic amplifiers was one of many technologies that USA took from Germany and provided to US companies (like also the Soviet Union did with their part of Germany, but while USA took the technical documentation and samples of the products, the Soviet Union moved entire factories to Russia, piece by piece).
The US were much more focused on "kidnapping" and/or incentivizing (it was often both) the scientists and engineers while the USSR just took the dead materials. The US reaped much greater benefits.