This last part (part 4) how to Design Lead Connection transformer. Design Complete Transformer Prototype. Watch all part videos in the link below: ►Part 1 https://youtu.be/72IN7pSbcgY ►Part 2 https://youtu.be/Zn2fBsF8D1U ►Part 3 https://youtu.be/R2kJuU3j3ds ►Part 4 https://youtu.be/CV9kYctaiEQ Thanks for watching, subcsribe and commenting.