In this article we talk about a few simple yet accurate transistor tester circuits which can used to identify whether a transistor is good or bad. Note: Please test *only* […]
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Battery Low Voltage Alarm Circuit
Despite its simplicity, the Battery Low Voltage Alarm circuit has a very important function. It forewarns you of approaching battery failure so that you may run to the store and […]
How to Connect LM338 IC in Parallel to Increase Output Current
The LM338 is an adjustable 3-terminal positive voltage regulator capable of providing up to 5 amperes of output current. To increase the output current capability, you can connect multiple LM338 […]
Mains 220 V AC Line Filter Circuit for Transient Suppression
The 220 V mains AC line filter circuit described here has two functions: it prevents high-frequency waves from being sent back into the power network and it protects connected equipment […]
Control Lights, Fan, using TV Remote [Full Circuit Diagram]
In today’s world, the idea of control is strongly connected to the ability to use remote devices. Home automation, known as domotics, allows us to switch ON/OFF various things such […]
Mains AC Current Detector Switch Circuit
The circuit presented in this article allows one to detect the current consumed by a device and to power one or more other devices accordingly. Indeed, the solution of a […]