RimstarOrg | Fun with Joule Thief Powering a Compact Fluorescent Light @RimstarOrg | Uploaded 11 years ago | Updated 9 hours ago
Demonstrations and testing of a joule thief circuit powering a compact fluorescent light (CFL) as requested by many who watched my "How to Make Joule Thief Light a CFL - Jeanna's Light" video. I show:
- how the light brightens using more batteries, including a 9 volt battery
- what effect the potentiometer/variable resistor has
- voltage and frequency measurements made using an oscilloscope at various points in the circuit
- using a solar cell to observe the light from the CFL, along with any flicker
- how to use a PNP transistor in the joule thief circuit instead of the NPN transistor
- testing how long the batteries last i.e. testing battery life, including mounting the transistor on a heatsink to solve a heating problem
- measuring current
- testing for interference with AM, shortwave and FM radio, analog TV signals and an LCD screen

More of my Joule Thief videos:

How to Make Joule Thief Light a CFL - Jeanna's Light
http://youtu.be/FkLET8MhRbU

How a Joule Thief Works
http://youtu.be/0GVLnyTdqkg

Make a Joule Thief for Zombie Batteries to light an LED
http://youtu.be/B61DU7yEsPM

To watch the "How to mount/attach transistor to heatsink (2N3055)" video:
http://youtu.be/hNRacVQRgBc

To watch the "How to take Piezoelectric Igniter from Lighter for Spud Gun":
http://youtu.be/DAyM8Iet1O8

And for my webpage about joule thiefs, go to:
http://rimstar.org/sdenergy/joule_thief.htm

For Todd Harrison's fun electronics, DIY and more channel, go to:
youtube.com/user/toddrharrison

To follow me on Twitter:
twitter.com/#!/RimStarz

http://rimstar.org

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