[Open Frime TV] has a video addressing this in a novel way, by creating the windings for a switch-mode power supply transformer using stacked PCB coils instead of wire (Russian language ...

Croatian electrical concern Koncar [ZSE:<a href=" target="_blank">KOEI] said on Thursday its subsidiary Koncar D&ST [ZSE:<a href=" target="_blank">KODT, <a href=" target="_blank">KODT2] has delivered ...

Even with the kinds of coils used in chokes and transformers for ham radio, which generally have relatively few windings, passing all that wire through the toroid time after time is a pain.