Ipese agbara yi pada ni lilo awọn paati iyipada itanna gẹgẹbi awọn transistors, tube ipa aaye, silikoni iṣakoso rectifier thyratron, bbl, nipasẹ Circuit iṣakoso, awọn ẹrọ itanna yipada nigbagbogbo “tan” ati “pa”, ṣe ẹrọ itanna ẹrọ devic .. .
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