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RandomElectronics
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Добавлен 13 мар 2012
My channel is mainly about electronics. I like looking inside various electronic devices to see what components make them work. Sometimes I try to analyze the circuits to figure out how things work. Please consider subscribing if you like these types of videos.
Inside a 5 port USB charger/charging station
Today I look inside a 5-port USB charger that gets very hot while charging multiple devices. I test the efficiency of the charger, look at the components used, and see if the circuit is safe.
Просмотров: 65
Видео
Inside a 40W equivalent dimmable LED bulb
Просмотров 2374 месяца назад
Today I look inside a different 40W equivalent LED bulb: this time a dimmable Sylvania branded one. This bulb was used in a light fixture connected to a dimmer. I examine this bulb's design and its ability to dissipate heat from the LEDs. This bulb has a significantly different design compared to the failed LED bulbs I looked at in previous videos that were designed to last 5000 hours and had p...
Inside a 15A Toggle Light Switch
Просмотров 666 месяцев назад
Today I look inside a 15A single-pole toggle light switch. This type of switch is commonly used to control lights and ceiling fans at home. I look at the mechanism inside used to open and close the switch contacts.
Fixing Broken Mouse Scroll Wheel
Просмотров 18310 месяцев назад
I fixed the scroll wheel that was not working in a wireless mouse. What I found inside this computer mouse was surprising.
Inside a Ceiling Fan Speed Controller
Просмотров 52411 месяцев назад
I look inside a ceiling fan and light control switch to figure out how it works. This particular switch provides two brightness levels for the light and four fan speeds. I also made a schematic of the circuit in order to analyze it and determined the switch controls the fan speed in an interesting way.
Strange Fan Controller
Просмотров 163Год назад
I tried to build a device to control the speed of plug-in fans and it didn't work as I thought it would. I will look inside the speed controller in another video.
Inside a 60W equivalent LED bulb
Просмотров 239Год назад
I look inside a new 60W equivalent version of the Utilitech LED bulb to see if it is any better than the old 40W equivalent bulbs.
Replacing Outdoor Outlet In-Use Cover
Просмотров 479Год назад
I replaced an old plastic in-use outdoor outlet cover with a metal version so it lasts longer in the sun. I also replaced the outlet because it was old and not weather-resistant. I even found a small wiring mistake and corrected it.
Inside ANOTHER Failed LED Bulb
Просмотров 130Год назад
Today I look inside another Utilitech LED bulb that failed. It failed in a similar way to the first one that failed. I also test each LED to find the faulty one. A link to the video with the schematic of the power supply board: ruclips.net/video/QHD4KFD_lAI/видео.html Timestamps: 00:00 Intro 00:21 Opening the bulb 01:28 Looking at the LEDs 01:42 Removing the LED board 02:19 Removing the power s...
Trying to Light LED Bulbs With Electroluminescent Wire Power Supply
Просмотров 343Год назад
Today I tried to light LED bulbs using an electroluminescent wire power supply. Some bulbs worked and others did not work with this power supply. This isn't how LED bulbs are supposed to be used.
Inside a Failed LED Bulb (With Power Supply Schematic)
Просмотров 409Год назад
Inside a Failed LED Bulb (With Power Supply Schematic)
Another Test With A Photoelectric Smoke Alarm
Просмотров 1642 года назад
Another Test With A Photoelectric Smoke Alarm
Does The Test Button On a Photoelectric Smoke Alarm Test The Sensor?
Просмотров 2 тыс.2 года назад
Does The Test Button On a Photoelectric Smoke Alarm Test The Sensor?
Inside an electroluminescent wire power supply
Просмотров 9202 года назад
Inside an electroluminescent wire power supply
I Tried To Use An Apple Pencil With An Incompatible iPad
Просмотров 8333 года назад
I Tried To Use An Apple Pencil With An Incompatible iPad
Charging Apple Pencil With Incompatible iPad
Просмотров 2463 года назад
Charging Apple Pencil With Incompatible iPad
Weather Sensor Teardown (Indoor Display)
Просмотров 383 года назад
Weather Sensor Teardown (Indoor Display)
sounds like a Wagner flexio 3500.
It has bass too lol
I had a couple Satco clear bulbs do the same thing
I think GE and Sylvania used to use a special filament that reduced arcing at the end of their lifespans
Also mine tells the position and speed of the satellites nearby and how many there are
2:28 THATS WHAT HP STANDS FOR
Yo anybody else here like computers ?
Its a navigon canada
It also has touch screen
Yo i have a gps to from a thrift store
I have a ripoff Apple Pencil and a nice small crack on my screen
Cool dude
I have a sealed container of 2 smoke alarms one taken apart with just the board and Ionisation chamber and one still working
The tower fan motor looks the same would it work?
I got a motor from a tower fan would that work to try this?
How did you do it did you connect aux cable or amplifier to it ?
I used an amplifier like I showed in the video.
Cool dude
Very cool
If it doesn't work for your phone, first turn off TV, connect phone to TV via USB cable, then turn on TV, and it should start charging. At some phones might ask for confirmation what to do with the tethered device.
One of my bulbs did that too for a while before replacing it. I’m NOT an engineer so take me with a grain of salt but I think what’s going on is that some sort of wire is possibly frayed on the inside, and touching something that’s holding on to the latent energy for longer than it should, and in which case, fire hazard.
Still a really cool demonstration. :>
Cool, next time show the ends of the bulbs you're conveniently keeping just off screen.... Oh that's right you can't cuz then we'd see the wires that are ACTUALLY powering those lights lol
I uploaded a new video showing that this actually works with the entire fluorescent tube in frame so you can see there are no hidden wires.
This.. isn’t some sort of trick, with all due respect to the creator, this is the kind of thing you learn about in high school. Or.. if not, they really oughtta teach about Tesla and his inventions more instead of giving all the credit to a guy who stole patents from his juniors and actively tortured animals to defame his rivals :/
An extremely tidy setup too, did you build all that yourself, or did you buy some sort of prebuilt thinger?
I bought a pre-built one a few years ago.
I was expecting the censor to be disconnected or something not blocked by dust and hair how do you let your mouse get so dirty in the first place?
This mouse is actually my mom's, not mine. I think it got this dirty because it wasn't cleaned very much while the scroll wheel was still working.
Hi i am new i like your video❤
I think it has to do with how the fan controller modulates (?) the AC current to make the fan spin at different speeds. Also, I’m not an electrician so idk lmao
Can i hook up the el wire to a 12v dc supply instead of the usb 5v ac adapter it call's for
very weird lol
Did you find a date code on the LED board or power supply? Just wondering because the one I tore down in my video had a different construction.
There was a date code printed on the LED board and the power supply. This bulb appears to be designed or manufactured in 2015.
@@RandomElectronics1 Hmm, mine was made in 2015 as well. Perhaps they just had different designs for the different wattage bulbs (mine was 60w equivalent)? Mine failed by flickering, which I believe was the fault of the smoothing capacitor, but can't be too sure on.
The input resistor is a special fusible resistor designed to blow safely. It is common in LED bulbs. Some new bulbs feature a 1 PCB design where the bridge rectifier, calacitor, and LED driver are on the same PCB as the LEDs, clearly designed for lowest cost.
Do you know the values that is coverted to ac like what volts and frequency?
Very cool, I always wondered what the inside of one of those looked like. I wonder if it had some sort of ventilation, it would bring the internal running temperature down & last longer.
Thanks for trying out my idea! Keep up with the good content! Also, it seems to work much better with 230v bulbs, and this is based on a test I did. It could power a 6w 230v easily, but when I connected an 42Vac rated bulb, it only made it very slightly glow, with flicker. When I tested an 24v cfl, it did nothing at all. Last, I connected it to an 12v led and it lit only half the diodes. Also, it seems to work better with the old spot leds with the epoxy diodes. Fun fact, it can power up neon bulbs.
Is touching the photoelectric chamber is unsafe?
Touching the photoelectric chamber is safe as it only uses light to sense the smoke. However, do not touch any part of the smoke alarm's insides (including the photoelectric sensing chamber) when it is connected to the mains electricity just to be safe.
The thing that it’s irritating to me is that even with more expensive led lightbulbs the max was like 4 yrs but instead of 3€ it’s like 12€ yes it’s a filament led but still it’s too expensive and all in one fixtures with leds lights already in it are even worse. I hope that we could buy Dubai led lightbulbs at least those can last a good 8/10 yrs and apparently cost the same 9€ of a standard filament led bulb.
I have had quite good luck with LED bulbs, except for the ones in these outdoor lights. These outdoor lights are kind of a durability test for LED bulbs because they run for a few hours per night and outdoor temperatures can vary a lot. These ones keep failing because they are only rated for 5000 hours lifespan. However, here in the United States, for just $2.09 per bulb (not including tax and shipping of course), there's a 60w equivalent standard LED bulb (not filament) that uses 9 watts, outputs 810 lumens, and lasts 25000 hours. In a future video I might take a look inside one of these to see how well they are constructed.
You should expand into programming if you haven’t already. I think that’ll give your channel a boost
A heat gun may melt the glue from the diffuser bulb top. I had one fall apart in a light fixture because of heat.
it's designed to fail after a year or so..
Yes. I did a calculation and this specific light bulb will only last 1.7 years when switched on 8 hours per day, based on its 5000 hour lifespan. This is because it was used on a dusk-to-dawn light sensor in an outdoor light fixture which probably ran the bulbs 8 hours per day on average.
what if you want to turn on the light without pressing the button? so when the battery is installed the light immediately lights up, thank you
This power supply featured in my video does not turn on the light immediately when the battery is installed. You have to press the button to turn on the light.
You can add bypass the button by soldering the connection shut so when you install the batteries it will instantly light up. (Note that you won't be able to turn it off unless you disconnect the batteries, and also if it has blinking feature you won't be able to use them.)
О май гет
😂
I use these power supplies to power light 220v rated bulbs and it actually works! It works especially on LED bulbs and the more powerful + current it has (replacing AA batteries with D) it might be able to light up an CFL and make an incandescent bulb glow slightly(better not to test the incandescent because it blew the transistor of my supply due to overload)
Interesting, I'll have to test this!
@@RandomElectronics1 Your power supply will probably light bulbs better because mine is smaller. Also I modded it to have bigger battery with more current (I replaced mine with a 5000mAh li-po 3.7v) and it was able to make an ordinary led bulb turn on bright, it was able to light up a small CFL, and I connected it to a 7w incandescent night light, which resulted in it glowing dimly and the components of the supply blew and made the room stink... It also lasts long (before and after the battery mod). Do not increase the voltage (for example using 9V battery or 12V or 24V) as it will result in an almost instant blow of the circuit. Now I am planning to use mosquito zapper circuit or camera flash circuit to make a portable lightbulb opener.
Is there a way I could hook up my 5v el wire to my 12v dc supply. It came with a USB plug for a 5v ac phone adapter.
@@michaelspencer2559 Just buy one of these simple 12v to 5v adaptors for cars (they plug in the car outlet). You can find them on pretty much any electronic store.
@@Jokid1146 I live in a RV and have both 12v DC and 110 ac the adapter calls for a phone charger block. I was or am trying to just hook it straight up to my 12v dc on /off switch. So if that's what I have to use I'll just put in a new outlet. The 12vdc wires are just closer. And was trying not to have to do it that way. But thanks 👍🙏
This shit is crazy yo
I like slime, i like bridges. But putting them together is just weird, a good kind of weird.
TY ... Always wondered whether the test button was a real test ... Looks like it is ... Would have been good to see whether the test button increased the IR led brightness during the test to pass through the chamber.
I completed some tests using an IR-sensitive camera and found that when the test button is pressed the IR LED flashes much faster. The video of this test will be uploaded tomorrow.
@@RandomElectronics1 TY... Interesting!
Very good test Alex. Your comments about testing your smoke detectors were very important.
does OneDrive affect computer or is it useless? bc im about to end task OneDrive pls reply
OneDrive is useless only if you do not store any files there. You can end the OneDrive task regardless but if you store files in OneDrive then they will not sync until you restart OneDrive
@@RandomElectronics1 thx for telling
Dude no way
oh damn, the page is black🤯🤯🤯
Cool seeing the inside of random stuff.... You seem to know more than most people about the inner workings of things. 👍👍
Thank you
Fun to watch and learn about the inside of stuff.... (I subscribed...)