Let’s build a small solar AA battery charger. In an era of expensive energy better. In an era that energy is more expensive every day. Alternative energy is a good solution, to solve immediate problems, or renewable energy to do the work well. Solar energy is an alternative that we can use another kind. For … Read more
The simple ups circuit diagram as small emergency backup battery systems, can apply a lot applications, when power go out it will backup power automatically […] Read more
We are experimental to create a simple counter circuit today, is a 2-bit binary counters.Which consists of the gate and flip-flop both of TTL-IC type. We use the ICs are NAND Gate number: SN7400N and the flip-flop No: SN7473N, which consists of JK-FF two pieces. We use only one at a time, so can try … Read more
This Small 5-volts DC Regulator. without IC-7805. Using transistors are interesting. If you have an old transistor or want to save. It may be a good choice. Read more
SEE a lot of Small IC Power Amplifier Circuits, You will love them! Read more