DESIGN AND CONSTRUCTION OF A 50W AUDIO AMPLIFIER  

2009-11-23
This project consists of comprehensive explanation on how to design and construct an inverting and non-inverting operational amplifier produce a 50w audio amplifier. The purpose of an amplifier is usually ...

DESIGNING AND CONSTRUCTION OF FRIDGE DOOR ALARM USING IC 4060  

2009-11-23
A fridge door alarm is capable of alerting when the fridge door is open or not properly closed these present the design and construction details of the fridge door alarm.

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 40 WATTS FLUORESCENT INVERTER AND PROJECT REPORT  

2009-11-23
This contains details of the design and construction of 40 watt' fluorescent inverter for a single fluorescent tube. The systems basically convert D.C supply to A.C for lighting the fluorescent ...

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 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 ...

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 500W DC/AC INVERTER  

2009-11-23
This project gives details of the design and construction of a modern 250W dc to ac inverter. The system consists of the main inverter stage and the step up transformer.

DESIGN AND CONSTRUCTION OF LED SOUND DETECTOR  

2009-11-23
This project report presents the design and construction of LED Sound Detector for Audio. The sound signal with light emitting diodes (Led) as an output indicator system.

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 ...