How to judge the quality of the UC3842 chip, let's try these methods [80 Xiaochen]

How to judge the quality of the UC3842 chip, let's try these methods [80 Xiaochen]
Hello everyone, I am 80 Xiaochen, an electronic product maintenance enthusiast. Friends who like electronic maintenance, please pay attention to me.
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[@Alexwong2552]

小城故事多。 👏👏👏谢谢小城

[@jigangjin7818]

建议小陈今后做视频的时候，让图纸在镜头前稳定地拍一下，不要老在动这张图纸，或有手啊什么的遮挡，始终都只能看到部分图纸--至少也要让看视频的人，可以截屏一张完整的图纸，日后可以自己分析、在脑子里走几遍。这样才能完全吃透、记住，光看一遍视频是不够的。

[@yueyuewang5894]

就是老是拿图纸晃，还有最好配上字幕

[@charlesszeto6663]

老師好, 請問在開関管G腳前1N4148是如何工作及功用

[@伯湯]

👍