Advice 2: How to clean gold and diamonds
Advice 3: How to clean limescale from the gas column
- - rubber bulb;
- a syringe;
- - vinegar;
- vacuum cleaner.
Advice 4: Why humming speakers
Advice 5: Why is this rattle speakers
Most often the columns in a hoarse voice, not through their own fault, and the fault of the amplifier. This is due to the fact that any amplifying elements - lamps, diodes, bipolar and field-effect transistors, in particular, included in the integrated circuit operate in a linear regime in a certain range of control voltage for the bipolar transistor control currents). To enter the reinforcing element in a linear mode, using a technique called offset - it slightly open. If the offset is too low, the amplifier is more economical, but with insufficient linearity. Namely nonlinear distortion and perceived by the ear as a wheeze. If it is too large, the amplifying element is wasted energy, and the linearity is still not increased above a certain limit. Therefore, all pre-amplifier stages usually work in a so-called class A, that is, the displacement for maximum linearity and output stage in class AB, in which the linearity is slightly reduced which has a beneficial effect on the economy. However, to this rule there are exceptions.
But if you apply to the input of the amplifier is too strong a signal, at least part of it cascades will work in overload mode. This means that the control voltage at the inputs of the cascades, even with the offset, will be to go beyond the linear section. So, the inevitable rattle. In General, the rule must be: in the entire chain of cascades overloaded should not be none. Sometimes, in order it to be so, enough to reduce the amplification of one of cascades and to proportionally increase the gain later.
In theory it sounds complicated, but in practice it's simple. You have connected to amplifier receiver or player. The amplifier exhibited a small volume, not the signal source is large. Thus, you have created all the conditions for the occurrence of distortion in the output stage of the player or receiver. Turn down the volume on the player or the receiver, and the amplifier increase in proportion to the hearing, it was again the same. Distortion is significantly reduced. But don't make the resulting audio level is too large, otherwise this time will be overloaded the amplifier and speakers, and hearing it's bad.
With increased signal level at the output of amplifier distortion may occur directly to the speakers. Ranging from too great amplitude diffuser will touch nearby items, hitting on them. The stroke limitation of the diffuser at the hearing is also perceived as a wheeze. If the dynamics are no so-called dust cap, a wheeze can be caused by dust particles caught in the moving system. Then it must be purged and then the situation is not repeated, wrapped in cloth the whole head. To perform this operation should be at idle amplifier.
Advice 6: How to clean bookmarks
Advice 7: How to clean your computer from unnecessary programs
- Utility PC Decrapifier.
Advice 8: How to clean your startup
Certainly at the start of system runs many programs that were once interesting to you, but now no longer needed. The icons you can see in the system tray where system clock is displayed. As part of the application and does not have any visual representation, thus absorbing part of system resources, slowing down its work.
In addition, from time to time to explore the startup is useful in the interests of safety, because sometimes there are runs of programs that you had not heard, and certainly not installed on your computer. This is a sign of viral activity, and such challenges must be addressed.
Well, in order to clean the startup was not necessary too often, be careful when installing new programs. Many of them default prescribed in the startup, but it is not always necessary for the user. Uncheck this setting and the next program will not slow down turn on your computer.
The easiest way to clean startup to open the start menu — Programs — startup". Here are the shortcuts of the programs that the system runs at every start. They can just delete (right-click and choose Delete). The shortcut will be deleted at the next Windows startup will not launch an unwanted app.
However, the startup menu is not the only place where it contains a list of startup at system startup applications. In modern versions of Windows there is a handy tool that allows you to see the full list start automatically when you start applications. In order to get started with it, enter at the command prompt, or menu Run msconfig. In the opened window we are interested in the tab startup.
You will see a list of programs that the system runs each time you start. It can be quite long. The part listed here is needed for operation of the system, for the convenience of the user, and the part you can safely disable it just by removing the check box the corresponding row.
To figure out which programs are necessary and which can be dispensed with, the layman immediately hard. Be careful, disabling some critical applications can produce unexpected and unpleasant effect: the system is broken. To facilitate your task in each row shows the author of this software module, the path to its executable module (column "Command"), and the column "Location" is the place where the necessity of running this module. This may be already known to us the startup menu — it is specified as a path starting from the system disk (usually C:), and ending with the StartUp folder. Other options for the location starting with HKLM or HKCU is a link to the registry branch. If necessary, the registry can be viewed and corrected without the help of msconfig.
Run regedit (you need to type this command at the command prompt or from Run menu"). We need branches of the registry HKLMSOFTWAREMicrosoftWindowsCurrentversionrun and HKCUSOFTWAREMicrosoftWindowsCurrentversionrun. Here is a list of keys, each of which specifies the path to the application the system runs when it is loaded. Delete key cancels the download of the selected application.