5 Simple emergency light circuit | Many ideas
This is first mini emergency light of my son. It is very small, use LED display when power outage,use transistor instead relay use AA battery charger. Read more
BD140
50 watt 2N3055 MJ2955 Amplifier circuit diagram with PCB
This 50W OCL main amplifier circuit has high quality and economical,it is designed simple,easily created, electronics rookie.cheap when compared to other Read more