4 PIN OPTOCUOPLER TEST TOOL!! SIMPLE AND EASY CIRCUITS TO MAKE

In this video, learn to make a tester or tool to check a 4 pin optocoupler, the circuit is quite easy, only uses a few components,
================================================== =======
If this video is useful, don't forget to like, share and subscribe.
THANK YOU

[@Psyche_KC321]

Bang cara buat alat cek kapasitor

[@ahmadhaedarichannel2489]

Bang itu soket bekas apa

[@oneon18]

Itu soket ic yang sudah di potong