DESIGN AND CONSTRUCTION OF A DC POLARITY PROTECTOR  

2009-11-23
The simple DC polarity protector was built using electronic components. The DC protector is a device used to protect electronic devices from getting burnt when using 9vdc because normally DC ...

CONSTRUCTION OF AN AUTOMATIC STREET LIGHT SWITCH  

2009-11-23
This automatic street light switch is a project working and operating on the simple fundamental principal of an automatic switching control system. This is basically a Schmitt trigger circuit which ...

DESIGN AND CONSTRUCTION OF AN ALARM ON LAPTOP DETECTOR  

2009-11-23
This system consists of three basic units, the title switch is a liquid, based switch the detects tilt, the signal amplifiers the signal from the switch to level capable of ...

DESIGN AND CONSTRUCTION OF A VARIABLE ELECTRONIC TIMER  

2009-11-23
Time project is going to concentrate on electronic means of achieving timing in various electric using only one IC. 555 Timer and some few discrete component such as resistor and ...

DESIGN AND CONSTRUCTION OF 300W DC TO AC MOSFET POWER INVERTER  

2009-11-23
This project gives details of the design and construction of a modern 300w dc to ac inverter. The system consists of the main inverter stage and the step-up transformer.

THE CAUSE AND EFFECT OF TRUANCY AMONG SECONDARY PUPILS  

2009-11-23
This study focuses on the causes and effects of truancy among Secondary School Pupils, A case study of selected Secondary Schools in Yola North Local Government Area of Adamawa State. ...

MINI AMPLIFIER WITH 250 WATTS OUTPUT THIS IS AN ELECTRONIC SERVICE PROJECT THAT AMPLIFIER A LOW RANGE RADIO FREQUENCY TO A HIGH RANGE FREQUENCY OUTPUT  

2009-11-23
This project is on the construction of a mini amplifier that gives a 250 watts output. Audio amplifiers have played a great role in many place as public addressing instrument ...

DESIGN AND CONSTRUCTION OF AN ALKALINE BATTERY CHARGER  

2009-11-23
This project is basically on the design and construction of alkaline battery charger the circuit entails sub-unit which are capable of re-charging four (4) discharged batteries at the same time.

DESIGN AND CONSTRUCTION OF A WIRELESS CHILD MONITOR (FM TRANSMITTER)  

2009-11-23
The Wireless Child Monitor is basically an FM transmitter and a receiver working together to monitor and care for an infant child. It covers a comfortable range that can cover ...

DESIGN AND CONSTRUCTION OF CELL PHONE CALLING DETECTOR  

2009-11-23
A cellular phone calling detector, it is cable of detecting calls from a cellular phone to prevent phone usage where it is not needed. The project is design to sense ...