Digital voltmeter circuit diagram using ICL7107 / 7106 with PCB
Here is simple ICL7017 digital voltmeter circuit easy to build and cheap because it is high technology, by single IC,small number, along by LED 3 digit. Read more
99+ Simple Electronic Circuit for Beginners
Learn 15 simple electronic circuits list for a beginner. To fast make and inexpensive. Understanding electronic circuits are important. Read more
10 Key Switch Code Combination Lock Circuit
Simple Key code lock switch circuit using IC-4017 digital, uses 10 switch bottom to control output by Relay. No microcontroller so easier and cheaper! Read more
15V Dual Power Supply Circuits With PCB
This is dual 15v power supply schematic, using LM7815,LM7915,and power transistor and zener diode for voltage stable voltage 15 volts positive and negative. […] Read more
Simple Voltage regulator using 2N3055
You want to use a DC regulator or learn about voltage regulators using 2N3055. Why use this transistor? Normally, it can be used with loads that require a current not exceeding 2A and a voltage of not more than 30V. This is enough for general work. It’s a transistor that people like to use for … Read more