Peter sent me a picture of his Bedini motor, with its colorful coil (see the attached picture). He says it draws 30 milliamps at 9V when running at maximum speed. There seems to be a large following of this Bedini SSG device, especially among the Free Energy advocates. It is called Bedini SSG, for Simplified
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I received a Google Alert with a link to a forum in which the poster declared that adding a 22 nF capacitor to the conventional JT will increase its brightness. I’ve read this claim previously and I tried the circuit (see attached pic) and I found that the LED went from bright without the capacitor
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I received a Google Alert for a Youtube video called “Joule Theif (sic) meets ABHA Coil!!” and I have some comments that I’d like to share, but I’m not going to put up with Youtube’s extremely lame text limitation of 512 characters. The two batteries in series show 2.5 volts on one DMM, and I’m
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I built this circuit, and it seems to be a lot more complex than it needs to be to do the job.
Kirk left me a comment asking how much inductance is too much. I’ll try to go into detail as to how the inductance and other factors affect a Joule Thief. First a couple things should be defined. This discussion is confined to a conventional JT, with a single transistor and a coil with two windings:
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This circuit is from a bunch of drawings that I have from the years before I started drawing circuits on the PC. It was drawn Jan 8, 2004 and built the next day. The design is much like those found on websites and in electronics magazines with the exception of D1 and R4. I’m not
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I posted this to my late, great wasts0nseblog but forgot to post it to my new rustybolt.info blog. I wound a third or tertiary winding on a Joule Thief to drive another LED. The LED could have been put in parallel with the existing LED IF it was the same color or the same forward
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This was from June, 2003. I still hadn’t tried to experiment with the single transistor Joule Thief circuit to get it to be powerful enough to drive 3 LEDs. The circuit I used is found here.
I have a lot of these 600 ohm telephone hybrid transformers that came out of a PBX (see here for much more info). They’re sturdy and well built, and make great audio transformers. Last week someone posted a video to Youtube of some Joule Thiefs that used an audio transformer and the frequency of oscillation
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I got an email from QS saying that he posted a Joule Thief Beeper to his web page, about 2/3 of the way down. I think it might make a metronome if the speed was adjustable. basically it’s a two transistor circuit with a single coil made from the voice coil of an 8 ohm
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