Current limiting resistor for LED or other loads
How to reduce voltage for LED and others loads. We use a limiting current resistor reduce current or voltage in a series circuit. So easy to do Read more
Basic Electronics
How to solder on circuit board
Why project does not work? Sometimes solder joint is bad. You need to know How to solder a circuit board. Easy but have to practice! Read more
Relationship voltage current resistance and Ohms Law
To Learn Relationship of voltage current power and resistance with water flowing so easy. Look at Ohms Law, basic electricity you should know. Read more
NE5532 Pinout Datasheet Dual low noise op-amp
NE5532 is in Hi-Fi audio system a lot. Why? Read this datasheet, Get pinout, spec, how to use. For example preamplifier with tone control. Read more