COB PROJECT [DOG SOUND]

6TP019

2B-DOG BARKING SOUND COB PROJECT

20P

TELEPHONE [TRIN TRIN PRODUCING SOUND COB PROJECT]

The project given is a wonderful project of electronic age This project produces such a sound that people get surprised but it is a surprising project for the people who are deprived of knowledge in electronics. This can be used as a door bell as well as in car while reversing.

This project works on 3V supply. The main component of the project is a COB. Its full name is Chip On Board. There is no separate number of COB just like a IC or transister. This is an IC of special  type mounted on PCB with fixture compound . This cannot be detached from PCB itself.

This project produces sounds like barking dog, telephone sound (trin-trin). The other components in the circuit are for biasing purpose only.

PARTS LIST

DOG CHIP=1

TRS 8050 =1, TRS 548 =2

Resistance

390K=1

10E=1

Cell Tray =1

 

TELEPHONE CHIP=1

Trs. 8050 =1

Cell Tray =1