Circuits DIY – Page 313

The 74LS138 decodes one of eight lines dependent on the conditions at the three binary select inputs and the three enable inputs. It is inte…

The 74LS132 IC package contains four independent positive logic 2-input NAND Gates with Schmitt trigger inputs. It is the part of 74XXYY IC…

The 74LS125 IC package features four independent 3-State Bus Buffers. It is the part of 74XXYY IC series. The 74LS125 IC has a wide range of…

Waking up in the morning is quite a task for many people. The aim of this project is to build an alarm clock which will help people go get u…

In this tutorial, we will demonstrate a dark-activated LED fader and its working. This dark-activated switch will activate the relay to oper…

A laser-based security system is a type of security alarm that uses a light sensor and laser light. In this tutorial, we are going to demons…

Table lamps are very useful and present in everyone's house these days. People use them for reading and studying purposes. In this DIY tutor…

This is a circuit of the “Solar FM transmitter”, the circuit is the same as we examined before in "Best FM Transmitter Topic" however we cha…

A Stable FM transmitter provides stable undisturbed output frequency even when the battery drains out. Therefore, this project gives a detai…

The light fence circuit is used to detect the presence of any person or object in a specific area. The Light Fence Circuit detection range i…

A charge pump is a kind of converter that uses energetic charge storage condensers to increase or decrease voltage. Charge-pump circuits, wh…

Many electronics struggle with Tracing Curves, whether it be the smooth VI line of a capacitor or the voltage of a collector transistor agai…

The battery level monitor circuit can be used to indicate the required low battery level. This is an opamp IC 741 low battery alarm indicato…

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