https://www.youtuberandom.com/watch/H2crF08aZr0/%E0%B6%A7-%E0%B6%BB-%E0%B6%B1-%E0%B7%83-%E0%B7%83-%E0%B6%A7%E0%B6%BB%E0%B6%BA%E0%B6%9A-%E0%B6%B4-%E0%B6%B1-%E0%B7%84%E0%B6%B3-%E0%B6%B1-%E0%B6%9C%E0%B6%B1-%E0%B6%B1-%E0%B6%B8-%E0%B7%84-%E0%B6%B8%E0%B6%BA-how-to-check-transistor-using-mutimeter-video