Quantsuff sent me a link to a Youtube video about Electrofishing. He said “Googling on Electrofishing yielded these numbers: 150-300V, 1-4A @ 16pps (15% duty).” Looks like it might be fun to build one of those gadgets. I got a Google Alert this morning about a Joule Thief, if you want to call it that,
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Well, I’ve finally got one of the coils I got from BG Micro hooked up to a two transistor voltage boost circuit (not a true Joule Thief) to see how well it works. The price was reasonable – a penny more than two bucks. It’s drawing about 65 milliamps from the 1.5V supply, and putting
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Here’s a picture I posted to my watsonseblog in 2009. It shows several of the toroids I wound on Fair-Rite “suppressor sleeves” I bought from Mouser.com (They cost about 12 cents apiece). The part numbers are 2673002402 (high permeability) and 2643002402 medium-high permeability).
Here’s 2 pictures I posted to my watsonseblog in 2009. They’re a picture of a conventional Joule Thief, and one of my Supercharged Joule Thiefs that I built to make sure that the first one or two were not just accidentally ‘too good to be true’. The Supercharged Joule Thiefs worked so well that at
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Here’s a picture that I originally posted to my watsonseblog back in 2009. It shows several ways to scrounge wire, and also a toroid core from a mouse cable. The plastic and cable have to be removed from the core before it can be used. The easiest way that I’ve found to do it is
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We don’t need no stinkin’ toroids! Just wind 15 to 20 feet of twisted pair (this wire was from cat5e cable) onto something round, like a C or AA cell. Then slide it off and tie it up in 3 or 4 places with some thread, twine, dental floss, piece of wire, or tape. The
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I got this Google Alert for a request for a JT schematic. The text of the original request and my reply are in the attached picture. These request are quite common, and typical for the forums which discuss Joule Thiefs. It is an up front indication that the requester has no clue whatsoever about what
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I started experimenting with the LED V boost circuit, which later became popularly known as the Joule Thief. This pic, dated Sept 2001, is a not so good example. I used 36 AWG wire, which is too thin and has too high resistance; that’s why it was drawing only 19 mA current from the battery
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2011-04-18 2011 Apr 18 JT Transistor Switch … I thought that it would be a really great idea to put several transistors on a switch so that I could switch between transistors and compare their performance. I only have to connect the base and collector leads to the switch. The emitter lead is almost always
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From my late watsonseblog.blogspot.com, 2011-06-02 2011 Jun 02 Make A Joule Thief Pictorial I’m attempting to make it simpler and easier to make a Joule Thief by using a pictorial diagram of a Joule Thief that’s, well, simple and clear. In order to keep it simple, I need the viewers’ input because what may look
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