Latest threads in Hobby Electronics Basicsshow only best voted threads
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24-30v dc power supply schematic
I need a schematic for a non regulated 24 or 20v dc power supply. I will be running high amps (15?) for a homebuilt induction furnace. . . . in advance to one and all. . .thanks. .. chas.
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11 years ago
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4046 LTspice Model
Did anyone ever try out the 74HC4046 vcm model I posted? ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus...
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11 years ago
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Custom Flash Speed for Genesis [Fire Alarm] Strobe?
I was gifted a handful of these units, with adjustable 15-90cd strobe brightness, and want to use them in a project, but they are only a 1 Hz strobe rate, and I want 10 Hz or higher. They are 24V and...
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11 years ago
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Circuit Pen?
Are Circuit Pen's as useful as they sound? I'd like to create my own circuit boards. Since I'm just learning and only doing one-offs, I'd prefer to keep the total cost down. Are they "good enough" to...
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11 years ago
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Observatory Drawbridge Shutter--linear motors
I'm a bit further along with upgrading my observatory with electronics with a control system to rotate the dome, and raise and lower the shutter. I farmed out the PC board work to someone who has put...
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11 years ago
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My future in electronics
Hi, My name is Chris. I am 29 years old One day I want to design my own 8-bit c omputer chip, build and develop cathode ray tubes monitors, tv, and to make Atari 2600 Games. When I was in K-12 School,...
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11 years ago
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Voltage variations damage?
Have just received by post a 'Fone Storm' car charger for a Huawei Ascend g300 phone. I wanted to check the specs to see if I had been sent the right one for this phone. On the box it says input DC...
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11 years ago
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Arduino choices
Want to buy an Arduino. Too many choices that I don't understand. Prices all seem to be nearly the same. Arduino will be used by a small group of high school students to build a "p ick and place"...
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11 years ago
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White LEDE strobe circuit link
See this link: for a circuit to strobe white LEDs. As I suspected, and had confirmed here and in the above link, the persistence of the phosphor is so long that 100 Hz is about the best you can do....
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11 years ago
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White LEDs for strobing?
I was thinking about making a little battery powered strobe using one of the really bright white LEDs now available. But I don't know how long the phosphor glows after the LED turns off. Anybody here...
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11 years ago
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74HC4046 Model Development
I have posted a first-pass attempt at a 74HC4046 model at... This is just the VCO portion for now, and just the variable part; suitable only for LTspice. Please try it out and let me know your...
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11 years ago
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traffic lights with white led lights instead of colored diy
let me start with that i know basically nothing, i thought it would be a go od project for my dad and i to do. Anyway, i have been searching online for schematics for a traffic light controller. i...
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11 years ago
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increasing current capability of a lamp dimmer
I would like to use a lamp dimmer to control an infrared heater. The heater is 1500 watts, and the biggest (cheap) dimmers I have found are 600 watts. I managed to get a deal on some 40 amp triacs on...
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11 years ago
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Detecting best path?
I'm a writer, and although I keep telling myself I'm still an electronics amateur, I haven't actually touched a soldering iron in years. I hope you'll help me anyway. :) Partway into a story, I've hit...
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11 years ago
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Call for Paper : IJESET
International Journal of Engineering Sciences and Emerging Technologies (IJ ESET) is a reputable venue for publishing novel ideas, state-of-the-art res earch results and fundamental advances in all...
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11 years ago
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