HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. [David Casler, KE0OG] received a question about how they work and answered it in a recent video ...
U.S. utilities need more transformers to build the zero-carbon grid and keep the lights on after major storms. But the specialized equipment is hard to build, and manufacturers can’t keep up with ...
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