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If you have a 120V Sony stereo amplifier that you plugged into a wall transformer to step down from 240V in Denmark and it worked fine then zapped can you replace the fried component to accept 240V?
Wiki User
∙ 15y ago
== == If you have to ask a question like this please do not open the cover of the amplifier.
Wiki User
∙ 15y ago
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White bias-line equation?
An amplifier is what increases a rock band's speaker sound output into a ear splitting experience and small radio signals in a radio until it makes it out to the speaker. A transformer converts AC electricity up or down to a desired level for a required project. Example: A battery charger plugged into a wall socket will transformed to about 18 votls to do the charging. Speaking in technical terms, an amplifier is a device which increases the power of a signal by either increasing the voltage or current or both. Whereas, a Transformer is a device which simply transfers power, i.e., the energy on both input and output is the same. In the case of an amplifier, the output power is higher than the input power. This is because of the power input we give to an amplifier.
What will happen if a modified sine wave inverter with 115 Volts output is used as a power source wherein a step up transformer is plugged into it to get a power output of 220 Volts?
It will work, but the transformer will not be able to supply its full rated load, because of the harmonic distortion of the non-sine wave output of the inverter. The transformer will also probably run a little hotter too. If you are talking a small load fed from a transformer much larger than required, probably nothing to worry about. But if the power level is large, or you are loading the transformer to more than 30 or 40% of its rated VA, you could run in to trouble. Monitor voltages and temperatures carefully (and have a fire extenguisher handy...)
What is current controlled current sources?
A unidirectional current controller device is a type of electrical on/off switch. In order for an item to work that is plugged into a particular outlet, the switch must be in the on position. It is like having lamps plugged into outlets that are controlled by only one switch.
What will happen to the transformer if DC voltage is applied to the primary winding?
DC current will not pass through a transformer, in the sense that a DC current on the primary will not produce a DC output from the secondary. A constant DC current will not produce any output from the secondary but there may be transient effects as the DC current is connected or disconnected (in which case, it's really an AC current, isn't it?) More about this below because I don't think that's really the question. If you pass DC current through either winding of a transformer, two things will happen. First, you will heat up the transformer and, if you have enough DC current, you will burn it out. Second, you will induce a magnetic field in the core. The more current, the closer the core gets to "saturation" or the maximum field it can support. This is important if there is both DC and AC current present because the more DC field in the core, the less core capacity is available to "transform" AC current. As the core operates closer to saturation, the AC waveform will be distorted and some of the AC power will be lost to heating the transformer. For example, if the primary of a transformer is connected to an AC source, and a DC source is connected to the secondary, then the primary current drawn by the transformer will increase, possibly enough to destroy the transformer. There are special transformers, called magnetic amplifiers, which take advantage of this effect to use a DC current to modulate an AC current. There are transient effects of DC currents in a transformer winding. As the DC current magnetizes the core, energy is stored. When the DC current is disconnected, this stored energy wants to leave the core. It can do this by inducing a voltage in either of the windings. If both windings are open circuit, this voltage can be very high. So you may see a spark jump when the DC voltage is disconnected. In a large transformer, this discharge may break down the transformer insulation and damage it. Some switching power supplies take advantage of this effect in which case the transformer is wound slightly differently and called a "coupled inductor."
How do you measure the volt-ampere rating of a transformer?
No need to measure, on the side of every transformer is a nameplate with all the transformer's specifications. Primary and secondary voltages, impedance and winding ratios. Need more info. What are you trying to do? If it is a small transformer - such as a one that is soldered onto a printed circuit board in a radio or a computer power supply- then it may not have any nameplate. If it is that type of transformer it will have been designed to do its job and you would not need to be able to measure its volt-amp rating. If the transformer is of the larger type that runs on household mains voltage that was mounted separately inside some equipment - such as an old battery charger, television, etc. - then you would have to use some suitable lab test equipment to be able to apply a variable load to its secondary winding (or to the appropriate tap on an auto-transformer) whilst measuring its output voltage and body temperature.Such tests should never be attempted unless you really know what you are doing and have the right test equipment to be able to do it safely. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Will an unpowered subwoofer work when plugged into an amplifier?
A passive sub-woofer does work when plugged in to an amplifier. In an active sub-woofer ("powered") the amplifier is built in.
Does an amplifier have to be plugged in?
Yes.
Can an electric-acoustic guitar be plugged in to a amplifier?
Yes. An acoustic-electric guitar plugs into an amplifier the same way a regular electric guitar does.
What energy does a PlayStation 3 use?
It is plugged into an electrical outlet without a transformer
White bias-line equation?
An amplifier is what increases a rock band's speaker sound output into a ear splitting experience and small radio signals in a radio until it makes it out to the speaker. A transformer converts AC electricity up or down to a desired level for a required project. Example: A battery charger plugged into a wall socket will transformed to about 18 votls to do the charging. Speaking in technical terms, an amplifier is a device which increases the power of a signal by either increasing the voltage or current or both. Whereas, a Transformer is a device which simply transfers power, i.e., the energy on both input and output is the same. In the case of an amplifier, the output power is higher than the input power. This is because of the power input we give to an amplifier.
How does a guitar make noise in concerts when its not even plugged in to an amplifier?
when the guitar players play any kind of guitar as you can see there close to a micro phone which projects soundBaYmArFor electric guitars:They make wireless transmitters that plug into the guitar and it sends the signal to a reviver that is plugged into the amplifier.
How Rickenbacker electrified the guitar?
through George Beauchamps invention called the single coil pickup and plugged into an amplifier.
Is an Aeriel on the roof a standard or an active antenna?
An active antenna is powered antenna, this includes a RF amplifier and a power supply so it must be "plugged in" somewhere. A standard "passive" antenna has no amplifier.
What powers the flash in a camera?
One or more batteries or a voltage converter/transformer unit plugged into an AC outlet.
What happens when an ac transformer attached to ac appliance is plugged into dc power source?
it depends on the transformer size and the period of time involved if continuous it should just blow the breaker and itself.
How does the electric bass guitar produce its sound and how it works?
When you pluck a string on an electric guitar that is plugged in to an amplifier, the pick-ups underneath the strings "hear" the sound, and send it through to the amplifier, projecting the sound of the string plucked.
What is wrong with my electric guitar amplifier when you cant hear it?
1. It's not on. 2. The guitar is not plugged into it. 3. You do not have the settings adjusted quickly. 4. It's broke.
