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why does a travelling wave tube work at gigahertz, when a triode tube can't?
Ian Batty
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Can be a triode tube PET 25W be damage due to electric fluctuation?
Can a triode tube PET 25W be damaged due to electric fluctuation
What is an audion tube?
An audion tube is an electric amplifier device invented in 1906, as the forerunner of the triode.
Why you use tetrode instead of triode?
a tetrode is used when you need a screen grid tube, but a suppressor grid tube can't be used.OK, but the question was "why use a tetrode instead of a triode?"So, the answer...1. A tetrode has a higher voltage/power gain than a triode.2. A tetrode has less anode-grid feedback capacitance than a triode, and can operate in common-cathode radio frequency circuits without the neutralisation (or other corrective circuitry) that is needed by a triode.
Who invented the triode?
In 1906 Lee De Forest, an American engineer (often called the "father of radio"), invented the three-element vacuum tube, or triode.
A two cavity klystron tube is a?
a. velocity modulated tube b. frequency modulated tube c. Amplitude modulated tube d. simple triode
What is a crystal triode?
A crystal triode is the old term for transistor. Crystal diodes were well established by the time transistors were invented, so using vacuum tube terminology, the logical name for a diode whose current could be controlled by a third element was "crystal triode".
Was the first amplifying tube a triode?
If by triode, you mean "a three-electrode tube", then yes. You need a source of current into the device, a control electrode, and an "outlet" for the controlled current. Although there were radically different types of construction, all early amplifying tubes were triodes of some kind.
Explain briefly about field effect transistor?
Think of a solid state triode vacuum tube, the mathematical model is almost identical.
How many KB is a vacuum tube?
Kilobytes and vacuum tubes are not in the same category. At best, a twin triode vacuum tube is a single flip-flop and can hold 1 bit of information, making a vacuum tube about 0.000122 of a kilobyte.
What is the third electrode called in a triode thermionic tube?
There are three electrodes: cathode (filament) grid and anode. The "third" will be the one you do not already know the name of.
What is a TRIODE and what are its uses?
A triode is a vacuum-tube (US) aka valve(UK) with three electrodes : an anode, a cathode and a grid. The cathode is heated electrically which boils off a cloud of electrons. The anode is made positive ( typ. 100-500V) which attracts the electrons towards it. The grid is an open structure, usually of thin wires, placed between the anode and cathode, but nearer the cathode. If a negative voltage is applied to the grid the current flow through the tube is reduced. The more negative, the less current. Prior to the development of transistors, tubes were used for all things in radio,TV and electronics. Different tubes had different numbers of electrodes; the triode was particularly suited to high power amplifiers, especially at radio frequencies. Triodes are still used today by shortwave radio stations, and for RF heating equipment.
How many hours by train from dover to heathrow airport?
The fastest journey is by travelling via London St Pancras International and then travelling to Heathrow by the Tube - this journey takes around 2 hours. Alternatively, travelling via London Charing Cross or London Victoria and then travelling to Heathrow by the Tube takes around 2 hours and 35 minutes.
