TREE

It is expected that Samsung present its new phone Samsung Galaxy Note 4 officially in September during IFA 2014 event held in Berlin, Germany. Now, the Korean media already have an exact date of this phone Samsung. According to The Korea Times, Samsung will be announcing the Galaxy Note 4 on September 3, a day before the presentation of the Galaxy Note 3 last year. Samsung is expected to start sending invitations to the event "soon", including that the company would be a bit rushed to launch its new mobile big screen because Apple is finally breaking its tradition of offering only one size cell relatively small as the iPhone 6 to gain entry to the high-end market. It is said that Samsung is trying to get the Galaxy Note sale 4 days before what went on Galaxy Note 3 with this same purpose. It is expected that the Samsung Galaxy Note 4 has a QHD (2560 × 1440) 5.7 inch screen, a Snapdragon 805 / Exynos 5433 processor, 3GB of RAM and a 16 megapixel camera that would include th...

The target of this project was the design of a small portable mixer supplied by a 9V PP3 battery, keeping high quality performance. The mixer is formed assembling three main modules that can be varied in number and/or disposition to suit everyone needs. The three main modules are: Input Amplifier Module: a low noise circuit equipped with a variable voltage-gain (10 - 100) preset, primarily intended as high quality microphone input, also suitable for low-level line input. Tone Control Module: a three-band (Bass, Middle, Treble) tone control circuit providing unity-gain when its controls are set to flat frequency response. It can be inserted after one or more Input Amplifier Modules and/or after the Main Mixer Amplifiers. Main Mixer Amplifier Module: a stereo circuit incorporating two virtual-earth mixers and showing the connection of one Main Fader and one Pan-Pot. The image below shows a Block diagram of the entire mixer featuring four Input Amplifier Modules followed by four in-out...

When the new generation iPhone launches . some time this year there is a lovely chance that it will have a bigger display. The Wall Street Journal reports that Apple has began to order parts for the tool, including a display that is larger then the 3.5-inch that the iPhone has used since it was released. The screen on the 2012 iPhone will be at least four inches, according to the document. About a bigger iPhone screen have been around  as long as the iPhone itself, which mounted to an amazing amount of noise before the announcement of the iPhone 4S last year.The iPhone five, as it was known at the time, had a lot of rumors about it that did not pan out, of the most prominent being the move to a bigger display. Rumors had it that the size of the next-gen Retina display could be three.7-, 4-, or 4.2 inches, though the latter was quickly dispelled. Apple had no comment on the matter, but the article noted that Apple could be making the move in order to compete with rivals, like Samsun...

Apple finally launched iPhone 5, 2012’s most awaited gadget, at a highly anticipated event in San Francisco. The iPhone 5 is 18% thinner and 20% lighter than the iPhone 4S. It is the thinnest smartphone in the world with a casing made from glass and aluminium, according to Apple. iPhone 5 will run on Apple’s new operating software iOS 6. With a four-inch Retina Display screen, the iPhone 5 allows for five rows of apps — one more than previous versions of the device, which sported a 3.5-inch screen. Apple iPhone 5 features a retina display and the screen will have a 1136 x 640 screen resolution, with a 16:9 aspect ratio. Apple has also unveiled a brand new chipset for the iPhone 5: the quad-core Cortex A6 processor, which Schiller says is a full two times faster than the A5 chip in the iPhone 4S. There are also now three microphones in the mix: one on the front, one on the back, and another on the bottom. It sports an 8MP rear camera with panorama mode, backside illumination, hybrid IR ...

This is a Simple1.5.4.5V to 9V Converter Circuit Diagram. Build a Simple1.5.4.5V to 9V Converter Circuit Diagram. 1.5.4.5V to 9V Converter Circuit Diagram

The circuit above shows a 4-transistor utility amplifier suitable for a variety of projects including receivers, intercoms, microphones, telephone pick-up coils, and general audio monitoring. The amplifier has a power isolation circuit and bandwidth limiting to reduce oscillations and "motorboating". The values are not particularly critical and modest deviations from the indicated values will not significantly degrade the performance. Three cell battery packs giving about 4.5 volts are recommended for most transformerless audio amplifiers driving small 8 ohm speakers. The battery life will be considerably longer than a 9 volt rectangular battery and the cell resistance will remain lower over the life of the battery resulting in less distortion and stability problems. 4 Transistor Amplifier for Small Speakers Circuit Diagram  The amplifier may be modified to work with a 9 volt battery if desired by moving the output transistors' bias point. Lowering the 33k resistor conne...

This is a Simple1.5.4.5V to 9V Converter Circuit Diagram. Build a Simple1.5.4.5V to 9V Converter Circuit Diagram. 1.5.4.5V to 9V Converter Circuit Diagram