Make: Projects

Annoying TV Sound Circuit

This project is a circuit that makes the annoying sound that an old TV makes when the volume is off. This project is great for annoying someone like a brother or sister, your friends or even your enemy.

  • By
  • Time Required: 15 mins
  • Difficulty: Easy
Annoying TV Sound Circuit

Have you ever heard that ringing sound coming from an old TV? Well, that never happens anymore because TVs today use LEDs or other advanced technology. That old high-pitched whine came from the transformer that drove the cathode ray tube.

Even today when I hear that sound it sends a shiver down my spine, but I want to recreate that sound in this circuit.


Step #1:

Annoying TV Sound Circuit

Follow this schematic and put the components on the breadboard, or if you want you can solder it on some perfboard.

Step #2:

Annoying TV Sound Circuit

In the end it should look like this. There are not many parts so it's easy to build.


This circuit is great for annoying someone, and because of the high frequency sound it bounces off walls making it hard to find.