It is easy use a few parts, you can make it now! Read more
Let’s make 3 LED chaser circuits using transistors without ICs. We will learn how transistors work as switches with capacitor discharge. Read more
Let’s make Simple Li-ion Battery Charger Circuit with auto cut off when fully charged. To revive batteries that dead or so old. And using common components NE555, TL431. Read more
This is Outdoor solar lights circuits made by my son, at day solar charge to battery then night LED light up without AC line, Relay control the solar current […] Read more
Learn how LM317 can be a power switch controller instead of a transistor. Try a simple power pulse generator circuit.