А что касается катушки, то мелкие неброневые катушки в ассортименте присутствуют на периферийной компьютерной технике. Взять любую видеокарту дохлую и феном выпаять.
Для людей не творческих возможен вариант покупки в магазине 😃
хитрые товарищи методом избыточности комплектующих упростили конструкцию. но вроде все клево)
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