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Consumer Electronics
Ask questions here about the electronics you use every day: from phones and computers to kitchen appliances and radios.
4,952 Questions
What is the relationship between frequency and harmonics?
In digital, there's also usually a sinusoidal oscillator which is either built in or external, but the oscillations are converted into square waves to create a clock pulse which negates the harmonics.
There is a little problem in counting the harmonics and the overtones. So you find different statements in the internet. Some are wrong and some are right.
Scroll down to related links and look at "Calculations of Harmonics from Fundamental Frequency".
TTL Logic Circuits - "Transistor Transistor Logic" - are made using BJTs. They operate from +5 Volts. These are available from simple AND, OR, NAND Gates to complex circuits.
The voltage levels are
INPUT OUTPUT
Low (0) < 0.8V <0.4V
High (1) >2.0V >2.4V
Levels in between are undefined. The outputs are better than the inputs by 0.4V thus offering a noise margin. These are seldom used these days as other logic families have been introduced offering more advantages like, speed, lower power, wider / lower operating voltage, higher fanouts.
Sort of. In Sonic Adventure 2 Battle, he does Chaos Control to flee from that exploding capsule and in the race/battle with Shadow, if you play as Shadow and get to far ahead then Sonic says "I'll use your...Chaos Control" and zips in front. But this is the only game that I know of where he can use Chaos Control.
--
sonic has the power to use chaos control like shadow. However it is far more draining on his energy than for shadow. However the other chaos abilities such as chaos blast and chaos spear do not appear to be available to sonic.
What happens when a PUSH instruction is executed?
The value being pushed (push [value]) is placed on the top of the stack (esp) and the size of the value is added to esp.
What does prefix 74 and 54 on a ttl of cmos ic indicate?
The 74 indicates a general use IC, the 54 indicates a military specification device with a greater operating temperature range. These two prefixes were originally assigned in the 1960s by Texas Instruments for their TTL logic family, but have since become de facto industry standards. They were also adopted for CMOS in the 1980s when it was decided that having common package pinouts would make it easier for both logic designers and circuit board layout software.
You can try turning your squelch up. This will filter some of the static out. You can also program your scanner to only pick up channels that are relatively close to you. This will stop a lot of the static too.
I found the following solution at:
http://members.shaw.ca/bsanders/CleanPrinterDrivers.htm
...and it worked!
maybe if you go there you can read better. For Lexmark printers, follow until the very end. NOTE: Dell printers are made by Lexmark and have the same issue!)
How to clean up printer drivers
If the Print Spooler service fails when printing, when Windows starts or it can not be restarted, the usual reason is that one or more printer drivers is defective. If the Print Spooler service is not running, the Printers and Faxes folder will be empty and you can not use it to remove (or add) printers or printer drivers. If you have a Lexmark or Dell printer, see special information about Lexmark printer drivers.
It's important to only install printer drivers that are designed and built specifically for the Windows version you have. This is particularly important for Windows XP; many of the CDs and floppy disks distributed with printers (particularly older models) do not have Windows XP drivers - check the printer manufacturer's web site for printer drivers for the version of Windows you have (see Links).
A common cause of printer driver problems is to upgrade to Windows XP from Windows 95, 98 or ME without first removing the printer and the printer drivers.
The steps on this page will remove all printers and printer drivers from the computer. The printing subsystem is then "clean" and ready for printers to be added using printer drivers specifically for the Windows version you have.
If you have drivers for several printer models installed (e.g. on a Print Server computer) it may only be necessary to remove the defective printer drivers. At steps 2, and 7, just delete the entries for the printers or printer drivers you suspect are defective. Unfortunately, the files that comprise the drivers are all in the same folder. Also, the same files may be used by the drivers for several printer models. So, selectively deleting the driver files at step 12 may be difficult or impossible. With Windows 2000 and XP, in most cases, deleting the registry entries for the drivers (step 7) will be sufficient, so you may want to skip steps 10 through 12 if you have multiple printer models and don't want to re-install all of them.
Check in Control Panel, Add/Remove Programs; if there is an entry relating to one of the printers, select it, then click Change/Remove. Follow the dialog and "uninstall all" or "remove all" as appropriate. Some "printer software" have programs that show up here and it will be a good idea to remove those before going any further.
If the Print Spooler service is operational:
1.
Open the Printers (Printers and Faxes on Windows XP) folder 2.
delete all of the printers 3.
click File, Server Properties 4.
select the Drivers tab 5.
for each entry: 1.
select the entry 2.
click Remove
Usually, this will do a pretty good job of cleaning out drivers with Windows 2000 and later (not so with Windows NT 4).
If the Print Spooler service is not operational, or you want to make certain there are no printer driver remnants, either follow the instructions below or use cleanspl.exe from the Windows 2000, XP or 2003 Resource Kit (http://www.microsoft.com/downloads/details.aspx?FamilyIDen). cleanspl.exe from the Windows 2003 Resource Kit tools will work on Windows XP.
Some information about cleanspl.exe:
*
cleanspl.exe does a very thorough job of cleaning up the print spooler stuff, but it does not remove the spooler service dependency on the Lexmark service (see special information about Lexmark printer drivers. *
You can use it to clean up the spooler stuff on another computer (i.e. remotely). *
When you run it, it asks you if you want to remove some things that are actually delivered (and installed by default) with Windows. In most cases, you should answer No to the corresponding prompts (you don't want to remove the Standard TCP/IP Port or the BJ Language Monitor).
Here's how to clean up the print spooler stuff if cleanspl.exe is not available or you prefer to do things manually.
Warning! be very careful using regedit - if you delete the wrong things, you may render your computer inoperative!
6.
open regedit (e.g. click Start, key regedit and press Enter) 7.
navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Environments\Windows NT x86\Drivers
under this key, there will be the keys Version-2 and Version-3 (one or the other of these may be absent - not a problem)
the sub-keys under these contain the printer driver configuration information
delete all the sub-keys inside Version-2 and Version-3, but not these keys themselves
The Microsoft Knowledgebase article at http://support.microsoft.com/default.aspx?scidkb;en-us;324757). The steps below make the print spooler service only dependent on the Remote Procedure Call (RPC) service (RPCSS), which is normal. The print spooler service dependencies are stored in the registry at
HKEY_LOCAL_MACINE\SYSTEM\CurrentControlSet\Services\Spooler\DependOnService
The sc config command at step 16 resets the value of that entry.
15.
Open a Command Prompt window 16.
key the command sc config spooler depend but not before) 17.
restart the print spooler (see steps 8 and 9 above)
What type of items are considered electric?
Items considered to be electric require some sort of electricity in order for the items to work. These products can range from TVs, stereos, computers - anything that runs from a battery or is required to be plugged in to run correctly.
Is there some device that can block a listening device?
Listening devices (aka: 'bugs') are said to be vulnerable to the playing of sound or music from other sound producing devices (TV's - radio - players - etc) but I cannot assure that this is 100% correct.
Why does the midi system have the widest range of frequencies?
The MIDI (Musical Instrument Digital Interface) system has nothing to do with the range of frequencies.
MIDI is a method of communicating between various musical controllers, such as keyboards, and generators, such as synthesizers. The synthesizer is what actually generates the frequency. The MIDI system is simply the messaging subsystem. Think of it this way - one parallel to MIDI is a player piano roll.
The constitution protects an individual against what kind of punishments?
Cruel and unusual. Defining what that means has been a matter of opinion since it was written 230+ years ago.
Where can you find a outdoor lighting for outdoor exploration and emergency lighting?
Coincidentally, I am an outdoor adventure enthusiast who have similar troubles to yours，for us participating in regular outdoor activities, we urgently need those with strong lighting endurance and good at resisting water and dust, portable flashlights is better，but not best
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nothing come on people do you think its going to weigh 100 if you do then you are right you can make it vary hevey by puting your butt in the mid then tell your mom to play slender man when she screams her head off then put it on her then it will get air in it bad mom air
How do you use a SanDisk cruzer micro 2GB?
Plug the Flash Drive into a USB Port on your computer or laptop, and access the drive from My Computer.
What is the difference between DSMA and GSM?
The difference between DSMA AND GSM Disodium monomethanearsonate; ( DSMA) Global System for Mobile communications (GSM) THANK YOU
What are the advantage of nuclear power plant in Bataan?
In response to the 1973 oil crisis, the Philippines decided to build the two-unit Bataan Nuclear Power Plant (BNPP). Construction of Bataan 1 - a 621 MWe Westinghouse pressurized water reactor - began in 1976 and it was completed in 1984 at a cost of $460 million. However, due to financial issues and safety concerns related to earthquakes, the plant was never loaded with fuel or operated. In April 2007, the Philippine government made the final payment for the plant. The government was considering converting it into a natural gas-fired power plant, but this was impractical, and the plant has simply been maintained. In 2007 the Philippines Department of Energy (DOE) set up a project to study the development of nuclear energy, in the context of an overall energy plan for the country. Nuclear energy would be considered in order to reduce the country's dependency on imported oil and coal. In its 2008 update of the national energy plan, 600 MWe was projected on line in 2025, with further 600 MWe increments in 2027, 2030 and 2034 to give 2400 MWe. In 2008 an IAEA mission commissioned by the government advised that Bataan-1 could be refurbished and economically and safely be operated for 30 years. Refurbishment is estimated to cost $800 million. The IAEA was also to recommend a policy framework for nuclear power development in the country. In December 2008 the National Power Corporation announced that it would commission Korea Electric Power Corp (KEPCO, parent company of KHNP) to conduct an 18-month feasibility study on commissioning Bataan. One factor in choosing KEPCO for this was its experience with Kori-2, a very similar unit in Korea.
What is the difference between 2 way and 4 way speakers?
Within a speaker different drivers handle different frequency ranges. A two way speaker has different drivers handling two frequency ranges; in this case a woofer for the low freqs and a tweeter for the high freqs. A 3 way speaker also has a midrange to handle the middle frequencies.
