FET

DIY

Tr Tester Duoyi DY294 repaired

This page shows how I could fix broken DY294 by reverse polarity power supply. It works for over-voltage damage, too.
2023.06.10
DIY
DIY

DIY Tr/FET Tester completed

According to the cirduit design finished in below link, I have just finished assembly of Transistor/FET tester (hFE measurement device). It can fix the Emitter current (Source curr…（Read more）
2022.04.18
DIY