I wouldn’t attempt this in anything less than a clean room. But she does it in the kitchen, apparently. You can click on the link and see it in action. It actually works. http://www.youtube.com/watch?v=w_znRopGtbE
Archive for June, 2012:
2012-06-19 Joule Thief Odd Behavior
I left a few comments on this Youtube Video of a Joule Thief that behaves oddly. The waveform on his o’scope is the usual JT waveform, but it ‘gallops’ – the tops of the waveform have a periodic change up and down, which seems to change with the scope timebase setting. He gives a schematic
(Read More…)
2012-06-18 Joule Thief as Light Organ
In this Youtube video, the experimenter connects the Joule Thief to the audio output of an amplifier, and lights a string of LEDs. About the only thing new about this is the source of power: the amplifier. I would say that it’s less than desirable to use the amplifier for power for the obvious reason
(Read More…)
2012-06-17 Joule Thief As “Radiant” Charger
I’ve read quite a few of the blog posts (here is one) and seen quite a few of the Youtube videos that use a JT for a charger. Basically it’s a regular JT, with a diode from the collector to the charging battery’s positive terminal, and the other negative terminal connected to the positive of
(Read More…)
2012-06-15 8 LED Altoids Tin Light
I managed to squeeze 8 LEDs into holes on the end of the Altoids tin. The brightness is truly awesome. With that much battery current, I could have reduced the 33 ohm resistors a bit. But why push it and waste more battery current? It’s already really bright. That’s why I put the second switch
(Read More…)
2012-06-13 Supercharged Joule Thief – Flagiusz Opinion
The following discussion is in regards to the schematic in my Supercharged Joule Thief blog dated 2011-12-04. Flagiusz had some different ideas as to how it works. I would like to say that I totally respect his opinions, but I have no way of offering a firm explanation of how it works because I have
(Read More…)
2012-06-12 Peter’s Joule Thief With Flip-Flop Project
Peter asked in an email what I thought about the schematic he gave a link to in his email. With his permission I’m quoting his email: I found this on Youtube: http://www.youtube.com/watch?v=xO0V6foiiy4 I wanna build this (or something like this) as a surprise gift for my wife – the schematic is here: http://i123.photobucket.com/albums/o298/RODALCO/Joulethiefwithflipflop.gif May I
(Read More…)
2012-06-11 Watson’s Salvaged CFL Toroid Cores
I found two CFLs (compact fluorescent lights) that were dead, so I opened them up to see what happened. Both self destructed when the components burned up. I decided that most of the parts were damaged by overheating and unsalvageable, so I took the toroids out and threw most of the rest away. As can
(Read More…)
