When you make an electronic clock then are you simply learning how to solder some parts together. You will learn nothing about electronics. Somebody posted that his 10 years old daughter soldered together a complicated circuit but knows nothing about electronics.I'm a guy finished diploma in electronics and more eager to know about electronics. So i thought to make a circuit. Keeping on making circuits help me to design a circuit of my own as i think.
You need to design some circuits then test how changing some parts values affects the circuits.