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