100均アイテムでだけでAMラジオを作ってみたよ。４分で短いから見てね　1 dollar Items AM Radio

I made an AM radio with 100 items. Based on this, miniaturization and improvements such as channel selectivity (you can hear the sounds of other channels) Will be added. Overview 00:06 AM radio circuit configuration 00:09 Making capacitors 01:25 Capacitor theory 01:29 Making inductor 02:28 Inductor theory 02:12 Channel selection (resonance circuit, tuning circuit) 02:16 Assembly 02:55 Banana antenna 03:08 AM radio viewing 03:38 Material introduction 03:52 Channel registration ★ [Beginner] What is a capacitor? ?? I actually made it and experimented    • 【初級】コンデンサってなに！？実際に作って実験してみた   ★ Familiar wireless devices    • Video   ★ [Cannot be learned at school] Knowledge necessary for designing a radio    • 【学校では学べない】無線機を設計するのに必要な知識