CIrcuits

Circuit Simulation: A Quick Look At QUCS
https://www.youtube.com/watch?v=T4-Sf9rYgCg


QUCS Tutorial Ep. 1: Basic Use (DC, AC, and Transient simulations)

https://www.youtube.com/watch?v=uRGBmWxfuuw

How to Solder properly || Through-hole (THT) & Surface-mount (SMD) -Great Scott!

https://www.youtube.com/watch?v=VxMV6wGS3NY