Joule Thief

[jadaro2600]

Thanks for posting this. I could use a few of these to kill some bugs. I found the following item, is this the same thing?

Indeed it is.

[Foggy-Notion]

Are these electric bug swatters using the same Joule Thief Principal?

[Pirate88179]

I just got in from work and I stopped by the HF store and picked up 2 of the HV swatters.  Let's see, it only took me about 5 minutes after installing the batteries to get zapped! 

Warning! The screen holds a residual charge AFTER you release the on button.  I am sure I did not get the entire volts this produces but, it was enough to where I won't do it again.

I was thinking of using one of them to make a laser saber using a 48" tube.  I am up in the air about it because if I do this and it looks cool, some kid somewhere might try to make one and break the tube playing with it releasing mercury, broken glass, etc.  It looks like it would be easy to do however, just about everything is right there.

The other one I am going to make another tube light of some kind yet to be determined.  Plenty of volts here to play with.

I am glad this sale was pointed out, I never saw it in the catalog I just received the other day even though it was in there.

Bill

[Cap-Z-ro]

Bill !...I AM YOUR FATHER!

[jadaro2600]

I probably go pick another one up myself, they're cheap for doing what they do electronically.

The sighting was a fluke.

I think they work on the same principle, they have a number of capacitors and a number of diodes, so it seems like there's the basic JTC with a Villard or crockoff-walton extension to further boost the voltage.