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circut of an amplifier
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Can you run an amplifier with a power inverter?
Most likely yes depending on your inverter and how long you run it. I have done it once before. I ran a sub woofer and a PA horn in my dad's work van for fun. Ran it for about a half hour. It was a 1000 watt inverter on a 700cca battery. The amplifier was bridged to 150 watts RMS. If you run more power you might need a bigger inverter. Out inverter also has circuitry that filters out noise.
Where were the Zippers invented?
Pittsburgh, pa
EEG?
DefinitionAn electroencephalogram (EEG) is a test to detect problems in the electrical activity of the brain.Alternative NamesElectroencephalogram; Brain wave testHow the test is performedBrain cells communicate with each other by producing tiny electrical impulses. In an EEG, this faint electrical activity is measured by putting electrodes on the scalp.The test is performed by an EEG technician in your health care provider's office, at a hospital, or at an independent laboratory. You will be asked to lie on your back on a bed or in a reclining chair.The technician will apply between 16 and 25 flat metal disks (electrodes) in different positions on your scalp. The disks are held in place with a sticky paste. The electrodes are connected by wires to an amplifier and a recording machine.The recording machine converts the electrical impulses into patterns that can be seen on a computer screen, as well as stored on a computer disk. Before computers, the activity was printed on paper. In either case, the electical activity looks like a series of wavy lines. You will need to lie still with your eyes closed because any movement can alter the results.You may be asked to do certain things during the recording, such as breathe deeply and rapidly for several minutes or look at a bright flashing light.How to prepare for the testYou will need to wash your hair the night before the test. Do not use any oils, sprays, or conditioner on your hair before this test.Your health care provider may want you to stop taking certain medications before the test. Do not change or stop medications without first talking to your health care provider.You should avoid all foods containing caffeine for 8 hours before the test.Sometimes it is necessary to sleep during the test, so you may be asked to reduce your sleep time the night before. If you're asked to sleep as little as possible before the test, don't consume any caffeine, energy drinks, or other products that help you stay awake.How the test will feelThis test causes no discomfort. Although having electrodes pasted onto your skin may feel strange, they only record activity and do not produce any sensation. No significant electricity passes from the electrode into your skin.Why the test is performedEEG is used to help diagnose if you're having seizures and if so, what type. An EEG is also used to find the causes of confusion, and to evaluate head injuries, tumors, infections, degenerative diseases such as Alzheimer's disease, and abnormal changes in body chemistry that affect the brain.It is also used to:Evaluate problems with sleep ( sleep disorders)To investigate periods of unconsciousnessTo monitor the brain during brain surgeryThe EEG may be done to show that the brain has no activity, in the case of someone in a deep coma. It can be helpful when trying to decide if someone is brain dead.EEG cannot be used to measure intelligence.Normal ValuesBrain electrical activity has certain frequencies (the number of waves per second) that are normal for different levels of consciousness. For example, brain waves are faster when you are awake, and slower when you're sleeping. There are also normal patterns to these waves. These frequencies and patterns are what the EEG reader looks for.What abnormal results meanAbnormal results on an EEG test may be due to:An abnormal structure in the brain (such as a brain tumor)Attention problemsTissue death due to a blockage in blood flow (cerebral infarction)Drug or alcohol abuseHead injuryInflammation of the brain (encephalitis)Hemorrhage (abnormal bleeding caused by a ruptured blood vessel)Migraines (in some cases)Seizure disorder (such as epilepsy or convulsions)Sleep disorder (such as narcolepsy)Note: A normal EEG does not mean that a seizure did not occur.What the risks areThe procedure is very safe. However, the flashing lights or fast breathing (hyperventilation) required during the test may trigger seizures in those with seizure disorders. The health care provider performing the EEG is trained to take care of you if this happens.It may be difficult to get the paste out of your hair, but it should come out after a few washings with regular shampoo.ReferencesTrescher WH, Lesser RP. The Epilepsies. In: Bradley WG, Daroff RB, Fenichel GM, Jankovic J, eds. Neurology in Clinical Practice. 5th ed. Philadelphia, Pa: Butterworth-Heinemann; 2008:chap 71.Krumholz A, Wiebe S, Gronseth G, et al. Practice parameter: evaluating an apparent unprovoked first seizure in adults (an evidence-based review): report of the Quality Standards Subcommittee of the American Academy of Neurology and the American Epilepsy Society. Neurology. 2007;69(21):1991-2007.
What is function of inverter?
An inverter changes direct current (maybe from a battery) to alternating current
What has Thomas Edison invented?
Thomas Alva Edison invented or improvedthe telegraphthe phonograph (for playing music recordings)the electric motorthe light bulbthe movie cameraHere is a list of the main ones with dates:1868: An automatic vote recorder for legislatures.1869: Several telegraph devices.1871: Improvements in stock ticker technology.1874: Quadruplex telegraph for Western Union company, which transmitted four messages at the same time1875: The electric pen, an early copying device, and various telegraph inventions.1877: The phonograph (early recorded music player) and the carbon transmitter (a great improvement in phone technology).1879: A DC generator for electric lighting and the carbon filament lamp.1882-1883:A three-wire central station for distributing electric light, power, and heat in Brockton, Massachusetts.He discovered the "Edison effect," first called "Etheric Force", which was a "damper" or valve to control the flow of current.The carbon button which led to the diode.Electric waves in free space.1883: A three-wire central system for electric lighting in Sunbury, Pa.1886: An improved wax-recording phonograph called the graphophone.1881 - 1887:A system of wireless telegraphy to and from railway trains.A wireless system of communication between ships at sea and land.1887-1890:Improved the wax cylinder phonograph.Obtained over eighty related patents.Set up a commercial business to make and sell phonographs and records, including the machines to record and produce the records.1891:Several inventions to improve electric railways.The movie camera (Kinetoscope)1891-1900:A giant roller machine for breaking and crushing rock.The Fluoroscope screen for X-raysThousands of crystallizations of chemical salts.Discovered that crystals of Calcium Tungstate were highly fluorescent to the X-ray.Several improvements on the X-ray tube.1905: A new type of dictating machine, which let the speaker hear and make corrections.1907: The Universal Electric Motor to run dictating machines on all lighting circuits.1900 -1909: Many inventions on the ways to make pre-cast buildings.1900 - 1910: The steel alkaline storage battery.1910-1914: The diamond point reproducer and the "unbreakable" record, great improvements in his record playing phonographs.1912: The Kinetophone or talking movie picture.1913: Automatic correction device for the dictating machine.1914: The Telescribe, a phone with a built in recorder, that would record both sides of a phone conversation.1915: The first synthetic form of carbolic acid (C6H6O).Thomas Edison filed over a thousand patents for various inventions. Among them are the phonograph, electrical vote recorder, first electric generator, paraffin paper, electric pen, carbon rheostat, microtasimer and the electric chair.electric light bulbtelephonephonographmotion picture cameraThomas Edison filed over a thousand patents for various inventions. Among them are the phonograph, electrical vote recorder, first electric generator, paraffin paper, electric pen, carbon rheostat, microdensitometer, light-bulb and the electric chair.Thomas Edison did not invent the light bulb, he only improved upon it.
How do you connect your Behringer 1832FX to your PA system?
Mixer main out (two XLR connectors) to PA amplifier inputs.
What does PA in music stand for?
I think it is a Portable Amplifier but im not sure, i need the answer as well just to be sure, but im pretty sure its portable amplifier
Where can you buy a PA Amplifier?
One can purchase a PA amplifier in any good audio equipment store. Locally one can consult the yellow pages. Online purchase can also be made at Amazon or any audio retailer with a website.
What are the big speakers at a concert called?
They are called "PA" speakers. PA meaning "Public Address" is a large loudspeaker design to deliver sound to a large group of audience. You'll often see these large speakers at clubs, concerts, and cinemas. There are two types of PA speakers. "Passive" and "Active" speakers. The passive speakers doesn't have a built-in amplifier. These speakers will require the use of a power source called an "Amplifier" to power these speakers. The active speakers have a built-in amplifier and doesn't require the use of an amplifier.
What is EasySing?
EasySing Portable Amplifier Speakers with Microphones. It is a portable sound system that you can use as a audio system for Karaoke, Singalong ( Sing a long ) purposes. You can use it as a PA System or a Voice Amplifier.
What component of an AM transmitter generates the carrier frequency?
The classic AM transmitter layout is a master oscillator, followed by a "pen", or penultimate amplifier, followed by a PA or power amplifier. The master oscillator, which is probably crystal controlled, generates the carrier frequency.
List of basic band rehearsal studio equipments?
Drumset, Bass Amplifier, 2 Guitar Amplifiers, Speakers, PA System, Vocal Microphone, Mic stands
How do I bridge my Stereo PA amplifier to run one 8 ohm Sub-Woofer?
Bridging two amplifier channels is a way of delivering more power to a single speaker. A two channel amplifier might have a power output of 100W per channel. By linking them together, the power output to the single speaker can increase to 200W. It's not always quite that simple. If the amplifier can be bridged, it will say so in the manual and it will show the connections that need to be used. Trying to bridge an amplifier that is unsuitable is a sure fire way of killing the amplifier and perhaps the speaker itself. There are certainly methods that can be used to bridge amplifier channels even if the manufacturer does not offer the facility. To do so needs an intimate knowledge of the electronics used in the amplifier. The fact that this question is being asked indicates that the required knowledge isn't there right now. Much safer to obtain an amplifier that is rated and approved for bridged loads than risk the unpleasant results of getting it wrong.
What is Venn diagram before according to food service industry?
putapepe...anu bayan ang hirap sagutan... shabu pa..
Can you plug a 20 watt guitar amplifier line out jack into a 30 watt guitar amplifier input jack to increase the output volume?
No, from what I understand the line out on a guitar amp puts out a hotter signal than an instrument (your guitar for example) and shouldn't be run into another amplifier's input jack. The Line out jack is designed to be run into a PA or a mixer. Your best bet is an A/B/Y box to run both amps simultaneously.
Are PA Sytems used in businesses for communication?
Yes. PA systems are a good way for office or admin staff to communicate with workers in a factory or wharehouse without having to keep leaving their desk. A basic PA system consists of an amplifier a mirocphone a preamp( if required) and a number of horn type speakers. Ensure that the total number of horns does not exceed the ohm rating of the amp.
What does the term 'bravopro' mean?
BravoPro is actually a product you can buy. There is the Primera Bravo Pro ink cartridge combo pack, the BravoPro integrated karaoke PA system with amplifier, and the BravoPro Disc Publisher.
