Light a CFL with a single AA Battery
This is part of the project section of Transistor projects. Check out here to see all of them.
This is a very interesting project where you will light an old CFL using just a single AA battery. Really!
*Disclaimer : This deals with high voltage. Keep safety first. Do not touch any bare wires. You are solely responsible for any problems you cause to yourself*
The principle we will be using is that of a simple oscillator using feedback from a transformer coil. Alright lets get started!
What you need
You will need the following things for this project
- An old 8W CFL obviously(new one also works, if you don’t care about opening it for the sake of your project 😉 , thats what I did. Don’t worry there are more projects with CFLs. Check out the transistor project section. )
- A 9V centre tap step down transformer.
- A 2n3055 transistor
- A 1k resistor
- Some wires
What to do
- First, slowly open the CFL base without damaging it. You can carefully saw through it.
- You will see two wires coming out of the lamp to the circuit board. Cut them off.
- Now, wire the following circuit with the parts. Do not apply power supply first!!
- Double check the circuit. Now connect the AA battery. Viola! the CFL glows…
If you are done with this one, you can check out the following that also use CFLs