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What are the names of some old radio components?
Tube Choke Condensor Vibrator (used in HV battery supplies) Valve is another term for vacuum tube, used in old radios.
What is the function of the inductor in a fluorescent tube light circuit?
Without an inductor in series with the tube, the plasma in the tube would simply short-out the service wires. That would always cause the circuit's protective fuse to blow - or its circuit breaker to trip - to cut off the supply of current to the tube. If that happened the tube light would never be able to perform its intended purpose, which is to continue running - and giving out a continuous light - for long periods of time.So a high-inductance choke must be used in circuit with the starter and the tube for two reasons:firstly the choke generates a high voltage pulse across the tube when the starter's contacts open. That pulse causes the gas in the tube to ionise and become a low-resistance plasma andsecondly, because it is wired in series with the tube, the choke greatly reduces the current drawn by the tube once it contains the low-resistance plasma.The starter is a special kind of switch: its contacts are made of a metal alloy which heats up and bends soon after a voltage is applied, causing the switch contacts to open.
Why condenser used in tube light?
A tube light uses a condenser which is the old term for a capacitor. It functions as a small battery in a circuit.
What is the filament used in tubelight-?
The type of filament used in tube light is that one which is thin and surrounded by an oblong metal shield.
How does fluorescent tube glow?
A fluorescent lamp is a glass tube containing some mercury vapor, with a phosphorescent coating on the interior surface of the tube.The mercury vapor is made to glow by using a high voltage across its electrodes that sets off an electric arc discharge in the tube. The discharge can also be described as a conducting plasma.The resulting flow of current through the mercury vapor is stable and well-controlled by an external ballast, or loading device, which consists of a high-inductance choke-coil that is connected in series with the tube.The continuing dischange glow is invisible to the human eye but it causes the phosphorescent coating on the interior surface of the tube to emit visible light.A fluorescent tube lamp works by using the fluorescence principle. It contains two filaments, one at each end of the tube, which glow to heat up the gas contained inside the tube.The inner surface of the tube is coated with compound of elements having fluorescent properties, such as phosphorus. When it was manufactured all normal air was removed from the tube. In place of the air just a small trace of a gas is put into the tube, such as mercury vapor (for a white color), carbon dioxide (for green), neon (for red color), etc.When the electrical supply is turned on, what happens is that the two filaments glow and then the contacts of the starter open. This action provides a voltage across the tube that is high enough to ionise the warmed-up gas inside the tube. This ionised gas, also called a "plasma", excites the special fluorescent coating on the inside of the tube so that it gives out visible light.Note about the need for a choke and a starterWithout a high inductance choke in series with the tube, the plasma in the tube would simply short-out the service wires. That would always cause the circuit's protective fuse to blow - or its circuit breaker to trip - to cut off the supply of current to the tube. If that happened the tube light would never be able to perform its intended purpose, which is to continue running - and giving out a continuous light - for long periods of time.The starter is a special kind of switch: its contacts are made of a metal alloy which, soon after a voltage is applied, heats up and bends, causing the switch contacts to open.So a high-inductance choke must be used in circuit with the starter and the tube for two reasons:firstly the choke generates a high voltage pulse across the tube when the starter's contacts open. That pulse causes the gas in the tube to ionise and become a low-resistance plasma andsecondly, because it is wired in series with the tube, the choke greatly reduces the current drawn by the tube once it contains the low-resistance plasma.For more information see the Related link below and the answers to the Related Questions.
Where is the position of capacitance of tube light?
The small cylindrical thing that You see (generally on a side of the choke coil) is the "starter " of the tube light. This is the capacitor used in tube light. And is used to provide a momentary voltage rise of nearly 400V to start up the tube light hence Starter.
What are the applications of choke coil?
choke coils are various depend upon the specifications it built....for example if u take 0-5 amp choke coil it is used in household applications like for florescent lamps....
What is the functioning of choke coil?
A choke coil is used in several electrical devices. The function it has is to block AC currents from passing through as it allows DC currents to pass through.
What is the use of choke in the fluorescent tube?
The inductance primarily serves to limit current flow to the correct level for the tube. It also can be used during startup to provide an inductive 'kick' forming a higher-voltage pulse to start the lamp.
What controls the Choke on Briggs and stratton 4.5?
There are several systems used by Briggs for choke control. Auto choke engines are equipped with a heat sensitive bi-metal coil attached to the exhaust. When cold, the coil closes the choke plate. When heated by exhaust gases, it opens the plate. Most other models have a manual lever to open and close the choke or a primer bulb system.
Benelli choke tube markings?
Notches on the Choke TubeMost standard choke tubes have notches on their ends. The notches can be used to identity your choke tube, but they can be difficult to see. The following list shows what kind of choke the number of notches designate:1. One notch is a Full choke. (/)2. Two notches is an Improved Modified choke (//)3. Three notches is a Modified choke (///)4. Four notches is an Improved Cylinder choke (////)5. Five notches is a Skeet (or Cylinder) choke (/////)
What material used inside tube light?
tube-light is coated with phosphorous from inside
What are the names of some old radio components?
Tube Choke Condensor Vibrator (used in HV battery supplies) Valve is another term for vacuum tube, used in old radios.
What does an electrical choke do?
A choke is an inductor. The impedance of an inductor is dependent on the frequency of the current flowing through it. The greater the frequency, the higher the impedance. Therefore an inductor when used as a choke blocks the flow of high frequency current (by presenting a high impedance), while allowing low frequency or direct current to flow through it. Its function is to block ("choke") high frequencies while passing low frequencies.
What is the function of an electrical coil in a basic circuit?
There are a couple of examples that come to mind where there is a coil in a circuit. One is, the coil is used as a choke to block harmonics from going down the electrical line. Another example of a coil in the line is the coil in a magnetic contactor. When this coil is energized the contacts of the magnetic contactor close.
Use of choke in tubelight?
Choke has got two functions. Initially it raises the ac voltage to some 350 V so as to initiate the discharge of electricity through mercury vapour. Once the discharge becomes activated then low voltage about 110 V is enough to maintain the discharge through mercury vapour. This is supplied by the same choke.
What is the function of the inductor in a fluorescent tube light circuit?
Without an inductor in series with the tube, the plasma in the tube would simply short-out the service wires. That would always cause the circuit's protective fuse to blow - or its circuit breaker to trip - to cut off the supply of current to the tube. If that happened the tube light would never be able to perform its intended purpose, which is to continue running - and giving out a continuous light - for long periods of time.So a high-inductance choke must be used in circuit with the starter and the tube for two reasons:firstly the choke generates a high voltage pulse across the tube when the starter's contacts open. That pulse causes the gas in the tube to ionise and become a low-resistance plasma andsecondly, because it is wired in series with the tube, the choke greatly reduces the current drawn by the tube once it contains the low-resistance plasma.The starter is a special kind of switch: its contacts are made of a metal alloy which heats up and bends soon after a voltage is applied, causing the switch contacts to open.
