High Voltage Joule Thief Schematic – In this Youtube video, we see the circuit connected to and lighting a neon lamp. I corresponded with the author and he gave me permission to post the schematic to my blog. Here is the link (it’s a .PDF). High Voltage Joule Thief The author sent me some closeup
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Not long ago I bought a Duracell charger for my cell phone. It has various adapters to fit the different power connectors, in my case it was the Micro USB. I connected my cell phone to it last night and plugged it into the wall, and this morning I went to unplug it from the
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I found a Youtube video with a two transistor circuit (some mistakenly call this a Joule Thief) that is used a a voltage booster to give 9V from 1.5V or 3V. He shows the schematic of the circuit at the end. I had a similar circuit in my late great watonseblog. But I think
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Surge Protectors – Pros and Cons I was just sitting there, working on something, when I heard a loud BZZZT and immediately I smelled smoke. I couldn’t tell where the burning smell was coming from. I became concerned to the point of panic that there would be a fire breaking out any second. I couldn’t
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I took this pic a while ago, May, 2001. The germanium chip and catwhisker are so clear and visible. The GI stands for General Instrument company, the maker. I know that silicon chips are light sensitive. If germanium chips are, then this one should make a good light detector.
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
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
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Peter emailed me with a question about Geiger Counters. With his permission, I’ll quote his questions in the paragraph below and answer them following. it´s Peter again – a few weeks ago I purchased a good, sensitive (and fully functional!!) Geigertube for measuring background radiation – the only problem is that it requires 1000 Volts.
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This is a schematic of the electrical system of a microwave oven that uses a mechanical timer. It is so simple that hesitate to use the term electronic, because there are really only two components that are more than electrical: the magnetron and the high voltage rectifier diode. The capacitor is a high voltage capacitor,
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