Notebook Anti Theft Protector

Here the notebook anti theft protector circuit to secure your important netbook / notebook from stealing. Basically, this is a…

55 years ago

Shortwave (SW) Transmitter with IC BEL1895

Here the SW transmitter circuit based on IC BEL1895. This particular transmitter circuit works in shortwave HF band (6 MHz…

55 years ago

Solidstate Automatic Power-Off on Mains Failing

The following schematic diagram is the circuit of  solidstate automatic power-off on mains failing. A really good number of circuits…

55 years ago

Door Bell with Flashing LEDs

This is the door bell circuit with flashing LEDs to make the circuit more attractive. IC1 (NE555) is applied right…

55 years ago

1 – 9V Variable Desktop Power Supply

Here the variable desktop power supply which will convert a high input voltage (12V) from the SMPS / PSU of…

55 years ago

Musical Bell with Touch Switch

Here the circuit diagram of musical bell with touch switch and timer. This circuit is designed around CMOS IC CD4011…

55 years ago

Cell Phone Shield with Charger

This is the cell phone shield circuit which can be used as mobile charger. Give protection to your cell phone…

55 years ago

Simple Mobile Phone Battery Charger

The following diagram is a simple mobile phone battery charger circuit. The design is simple, easy to build and inexpensive.…

55 years ago

25 Metres Range, Short Wave AM Transmitter

Here the short wave AM Transmitter circuit design diagram. The circuit is quite simple and easy to build since it…

55 years ago