2B-RELIGIOUS SYMBOL ATTRACTIVE DISCO LIGHTING
This project is based on Disco light. You can display it as a sign board or a attractive symbol in yours homes, shops etc. Also it can be fitted on four sides of any article, clock etc to make attractive.
TECHNICAL DESCRIIPTION AND WORKING:-
This project has been developed and successfully tested OK in TV Engineer Technical Lab.
In the age of electronics world, Disco light has occupied an important place in the hearts of people. This can be used as different types of Religious symbol as well as sign board reflecting your Name, Company’ name etc. This project is very much popular among childern as well adults. During the darkness of night, this project is particularly more attractive. In this project LEDs in multiples of four have been used which have been shown assembled on PCB. The working of the project is similar as ” DISCO LIGHT” described earlier in this book.
LED [Light Emitting Diode] here works as semi-conductors, which glow [light] on a very low voltage. In this circuit the current flows only when there is forward biasing [anode is more positive] in comparision to cathode. In reverse biasing i.e. when the anode is negative, the current does not flow.
The circuit diagram of the Disco light is given earlier. It is a free runn
ing multi vibrator circuit comprising of two stages.In the first stage T2 BC 148B conducts while T1 remain idle. As a result, Four RED LEDs D5, D6,D7, D8 glow keeping off RED LEDs. In the second stage T1 conducts while T2 remains idle, As a result D1,D2,D3 & D4 [ Green LEDs] glow and Red LEDs remains OFF. This cycle continues.
LIST OF COMPONENTS:
R1,R2 68K 2
R3,R4 820 E 2
C1,C2 22mf/16v 2
LEDs- Red & Green as per requirement.