modified 4 months ago

This is a joule thief. I have used it to light up a neon bulb with an AA battery.

00:23:13

This is a circuit to light up a neon bulb with one AA battery.  I built this circuit by hand, and it works.  I can't seem to get the effect that a neon bulb has, but this is pretty close.  Swap out the diode for a neon bulb and switch the power supply to a single AA battery.  I discovered that a 2N4401 seems to work best through trial and error.

published 3 years ago

dyeske

3 years ago

Can someone please explain why the led looks like it is on fire when it's first loaded?

wyoelk

3 years ago

You need a current limiting resistor to protect the led against spikes. With all the coils and capacitors probably a 100 ohm would work. LEDs in the app are configured at 2v and 20ma

dyeske

4 months ago

I made some updates to make it easier to fit on the screen. I also updated the text with the transistor type that I used.

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.