The content is strictly copyrighted to the Admin and may not be reproduced without permission. Whenever AC mains supply fails, this circuit alerts you by sounding an alarm. It also provides a backup light to help you find your way to the torch or the generator key in the dark.
Pressing of switch S1 provides the 9V power supply to the circuit. Resistor R9 limits the operating current and hence the brightness of LED2.
When the battery voltage is 9V, LED2 glows with full intensity. As the battery voltage goes below 8V, the intensity of LED2 decreases and it glows very dimly. LED2 goes off when the battery voltage goes below 7. Initially, in standby state, both the LEDs are off and the buzzer does not sound. Output pin 10 of IC2 goes high to forward bias relay driver transistor T1 via resistor R7. Circuit diagram:. The time-out period of the monostable multivibrator is determined by R5 and C2. Light provided by this back-up LED is sufficient to search the torch or generator key.
Free Schematic Circuit Diagram Online The Four Commonly Asked Questions
During the mono time-out period, the circuit can be switched off by opening switch S1. The circuit below is a flashing bicycle light powered with four C,D or AA cells 6 volts. Two sets of 20 LEDs will alternately flash at approximately 4. Two transistors are used to provide additional current beyond the mA limit of the timer. The high output level of the timer is 1. The circuit should work with additional LEDs up to about 40 for each group, or 81 total.
The circuit will also work with fewer LEDs so it could be assembled and tested with just 5 LEDs two groups of two plus one before adding the others. I like to see lights move to music. This project will indicate the volume level of the audio going to your speakers by lighting up LEDS.Last updated: July 16, E arbuds don't last long—in fact, hardly any of the headphones I've ever bought have survived more than a couple of years.
Because the cables almost invariably weaken and break through constant movement. Some headphone manufacturers use more durable cables and reinforce the places where the cables join the jack plug and the phones themselves but, even with reinforcement, cables can still break sooner or later. When this happens, most people furiously throw their headphones in the trash and reluctantly buy another pair.
But if you can use a soldering iron, it's actually quite easy to repair them. Step-by-step, here's how Photo: An inexpensive pair of earbuds will usually fail sooner or later, either where the cable meets the phones or where it joins onto the jack plug. You'll need to use a knife or scissors, a burning match, and a hot soldering iron.
Please take appropriate safety precautions with these hot, sharp, dangerous things, solder only in a well-ventilated room, and so on. If you're a young person, ask an adult to help. If your headphones are broken, you may not worry too much about taking a risk trying to repair them. But be warned: it is possible though unlikely that you will damage delicate components in your headphones if you don't solder carefully.
Use a heat sink or apply the soldering iron for short periods of time to reduce the chances of heat damage. It's also possible that if you don't repair your headphones correctly, you could damage any audio equipment you connect them to. We accept no responsibility for any accidents, injuries, or disasters that result from your using the information here. You follow these instructions entirely at your own risk. Photo: 1 A replacement jack plug like this is a fraction the cost of a new pair of headphones.
There are small holes in the terminals through which you push the wires before you solder them in place. In theory, you can reuse a plug like this over and over again just by removing old cables from it. In practice, it can be tricky to get all the old solder off and the terminals snap off if you bend them too many times—so I'd strongly suggest you buy a new plug instead.
Photo: The wires inside a stereo cable. Strip the cable back so you have about 2. Join the two copper ground wires together so you have three wires instead of four. Your browser does not support the audio element. If you happen to have two broken pairs of earbuds, you can often join them together to make a single working pair—and it's a lot easier to do this than to add a new jack plug.
Suppose one pair has a broken jack and the other has broken earbuds. Simply cut the wires of both pairs in half or wherever you like and join the working earbud section from one pair to the working jack section from the other pair. You'll need to cut, strip, and prepare the wires as I've described above, and you'll also need to match the wires from one pair of earbuds correctly to those in the other pair which can be tricky if they're different colors before you solder.
You'll also need to cover the soldered joints with heat shrinks or insulation tape to stop the bare wires from touching and shorting. As an alternative repair along very much the same linesbuy yourself a headphone extension cable and solder that to your broken earbuds instead. Photo: Solder isn't glue.
Before you solder two pairs of broken headphones together, make sure you clean the bare wires and twist them tightly together to make a firm mechanical joint one that doesn't easily pull apart. When you solder a joint like this, heat it from below and apply the solder from above so it flows into the joint like water soaking down into a sponge. After you've applied some insulation, you can reinforce the joint further if you want to: wrap some sturdy wire around it then add more insulation on top.
This is much trickier than replacing just a jack plug, but it's essentially the same operation.Comunicazione 3
Even if only one headphone or earbud is broken, you should really cut the cable off both headphones or earphones, shorten it by however much you need, and then repair both phones. If you don't do this, you'll have one of the stereo wires slightly shorter and carrying slightly more current than the other and that can damage both your headphones and whatever they're connected to.
Exactly how you take the headphones or earbuds apart varies from brand to brand.
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Take a look at our main article on headphones for some reference photos that may help.Microsoft, without a doubt, is the world's largest software manufacturer. However, despite the company's serious efforts to go beyond the world of software and the desire to engage in more and hardware products, this company will always be recognized as a "producer of the Windows operating system".
At the moment, the Redmond company employs almost 95 thousand people from all over the world, but with the purchase of Nokia mobile unit this figure will now increase to thousand. In other words, one of the largest companies in the world has become even larger. But all these new employees will be useful to her, because Microsoft's client base is estimated by tens of millions of users around the world.
Many of you are very likely at least partially familiar with the history of Microsoft and you definitely know how it came about. However, there are some interesting stories about which, perhaps, some of you still might not have known. The purpose of this article is to acquaint you with ten lesser known facts about the company, which continues to feed on its operating systems about 90 percent of the always personal computer market.
Microsoft founder Bill Gates was arrested several times. Being one of the most famous philanthropists on Earth, Bill Gates, co-founder of Microsoft and one of the richest people in the world, was arrested several times in his youth. The first time he was arrested inwhen the police caught him for speeding and for Gates's lack of driving rights. Two years later he was arrested again. This happened in the city of Albuquerque, where the young and hot Gates rode around the intersections to a red traffic light.
And again without rights. His last arrest took place inwhen he almost became the head of Microsoft. He was detained with charges of drunk driving. Now, old Billy has settled down and is literally a real positive example for many. In most cases, of course, thanks to his work in a charitable organization, which he and his wife founded. The Cheet Gates invests huge amounts of money from their personal accounts on vaccine development that could help treat many diseases in poor countries such as Africa, for example.
If you would like to know what is the most favorite dish of the average Microsoft employee, then the answer will be very simple - pizza. Employees of this company for a year eat just a huge amount of pizza, for which, by the way, each of them could be proud of. According to the statistics of Microsoft itself, employees of the company eat up at least thousand slices of pizza and at least thousand whole pizzas per year.
The second favorite dish of software gurus are sandwiches.GIONEE Hidden \u0026 Secret Features
Each year, in the dungeons of their company cafeterias, one million is eaten. The most popular type of sandwich is a turkey sandwich. According to the company,are eaten each year.
After such a dense feast with pizza, the organisms of Microsoft employees, like the body of any person, require replenishment of fluid reserves, so people in this company need a huge number of available drinks. But for them this is not a problem. All drinks, which are offered in cafeterias and vending machines of Microsoft, are provided free of charge. According to the same statistics, the Redmond staff drink nearly 12 million liters of various drinks every year, 40 percent of which are Coke Zero.Gionee S Plus Price starts at Rs.
The lowest price of Gionee S Plus is at Amazon. S Plus is not available in other online stores. Updated On: 18th July Gionee S Plus 7. The phone features a 5. It has a 13 MP primary camera with flash and a 5 MP secondary camera.Kenshi bounty expire
The smartphone is powered by a 1. It is fuelled by a 3, mAh battery. Gionee S Plus Price in India.
Read full review. Gionee S Plus Details. The Gionee S Plus is a budget Android based smartphone which features a host of exciting features such as an octa-core processor, a 5. The smartphone ships with Android 5. The device is available in three colour options, dark blue, white and golden colours. The smartphone flaunts a 5. The display is protected by Corning Gorilla Glass 3 technology for increased longevity while having a HD x screen resolution.
The processing capacity on the device comprises of a 1. The storage space can be expanded further via an external microSD card. In the photography department, the smartphone comes with a megapixel primary shooter combined with a 5-megapixel front shooter.Pabrai funds 13f sec
Both the cameras are capable of shooting images in HD resolution while the primary shooter can record videos in Full HD. In addition, the primary shooter is accompanied by an LED flash. Powering the device, a non-removable Li-Po battery sits at the back of the smartphone and comes with a capacity of 3, mAh. The dual-SIM smartphone also comes with dual-active technology which ensures both the SIM slots are active at all times. General Dimensions 6.
Camera Rear 13 M. Pixels Selfie 5 M. Connectivity Bluetooth v4. Disclaimer: Specifications shown may be different from the actual product. Please check with the retailer before purchasing. Questions and Answers. Gionee S Plus Video Review. User Reviews of Gionee S Plus. Write a product review.I came across quite a number of questions about mobile phone and smartphone block and schematic diagrams Most of the question asked are: Do we really need a mobile phone schematic diagram in order to repair any mobile phone circuit and electronic equipment?
Will smartphone schematic diagram help us to repair faster? At where we can get a particular mobile phone schematic diagram?
Well, the answers is as below: Repair Any Mobile Phone Circuit and its Basic Electronic Components example schematic diagram In Mobile Phone Repairing Theoretically yes, Practically not necessary, it all depends on how good you are in basic electronic repair knowledge.
You will definitely need a SmartPhone schematic diagram when you come across a new designer or technology. For example schematic diagram, when comes to Cell Phone Repair I seldom see schematic because I already understood most of the circuitry and section in a Cell Phone. Maybe my situation is different from yours because I'm concentrating some types of Smartphone and Android Device.
Block and Schematic Diagram you can Repair any Smartphone faster? Unfortunately, many manufacturers do not release their Smartphone schematic diagram. If you depend on too much of circuit diagram you will be stuck on how to repair that particular Smartphone. Why with the block and schematic diagram you can repair any Smartphone faster? Because a schematic diagram is shown you all the part list, waveform, voltages, explanation how that particular Smartphone work, block diagram, schematic design, component's part value numberelectrical schematics symbols, substitution, modification if have and electronic schematic symbols and etc.
This will increase the company's reputation and customers will recommend to their friends about the quick service of that particular smartphone brand of equipment. This is usually a compilation of few brands and model of a specific smartphone. Nokia schematics diagram are easy to get but smartphone schematics and android schematics is a little bit harder to find.
If you have the budget get one of the books. Free mobile phone circuit diagrams schematics is easily found on the internet. You may also buy it the online. This investment will usually pay back in the shortest time. Schematic and Diagram Symbols As how to read the schematic diagram, I'm unable to show you through the article because you do need a real schematic and diagram symbols in order to make you understand.
Reading schematic diagram is not that difficult, provided you have some mobile phone basic electronic knowledge. This will add to your knowledge also.It also markets Blu-ray players, headphones, headphone amplifiers and smartwatches under Oppo Digital brand. From Wikipedia, the free encyclopedia. Chinese electronics conglomerate. This article may be expanded with text translated from the corresponding article in Japanese.
May Click [show] for important translation instructions. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation.
A model attribution edit summary Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:]]; see its history for attribution.Gbc plastificatrice
For more guidance, see Wikipedia:Translation. DongguanGuangdong. Retrieved 29 October The Denver Post. Retrieved 24 March Taipei Times. Archived from the original on 23 April Archived from the original on 4 January Retrieved 24 September Retrieved 31 January Retrieved 6 May Projector Central.
So who is Oppo?
They certainly are not a household name and with good reason as Oppo is a newly created North American branch of BBK Electronics of China, a giant in the manufacture of consumer electronics, employing 12, people worldwide.
So while Oppo is a new name, the company and the technology behind it are quite substantial. Archived from the original on 26 May Electronics Weekly.File Size. Download Link. Gionee Elife S5. Palm tree of superiority "the slimmest" from him took away his own brother Gionee Elife S5.
However, its characteristics have been more modest: 4. Gionee Elife E7 - the flagship device is represented with S5. It has the following features: 5. Gionee Communication Equipment Co. Ltd was founded in Its first factory Dongguan Jinzhong Electronics has specialized in electronic products and appliances.
A year later, Gionee has invested in the construction of another plant - Dongguan Jinming Electronics. He had four automatic lines for the production of mobile phones and more than 5, employees.
Initially, the plant production capacity to produce 2 million sets of products each year. Today this figure has exceeded 80 million. Great efforts have been made to the organization and development of their research and development centers, as well as obtain international quality certificates of production.
It invested more than one billion yuan in the construction of a huge industrial park Gionee, more than hectares. Business grew and in the share of the domestic market of mobile phones Gionee was In the same year the company began to expand to other areas. To date, Gionee has the largest production capacity in the world.
It has six research centers that work in the areas of design, hardware and software of the smartphone sales, marketing, communications technologies and many others. Moreover, exports to these countries reached 1 million. Smartphone month. We should also be said about the Indian market as one of the fastest growing in the world.Home decals
Gionee very seriously went to his conquest. The number of smartphones sold in India, it is close to 10 million. The company began to produce their own devices in the Indian manufacturing facility Foxcon. And plans to build factories in India.
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