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Vacuum Tube
In electronics, a vacuum tube or (thermionic) valve (outside North America) is a device generally used to... -
Circuit Elements And Sources
This chapter provides an overview of most commonly used elements in electric circuits. It also contains laws... -
Types Of Circuits
Types Of Circuits Most analog electronic appliances, such as radio receivers, are constructed from combinations of a... -
Basic Theory Of Electron
The electron is a fundamental subatomic particle that carries an electric charge. It is a spin-½ lepton... -
Applications Of Vacuum Tubes
Applications Of Vacuum Tubes Tubes were ubiquitous in the early generations of electronic devices, such as radios,... -
Special Purpose Tubes
Special Purpose Tubes Some special-purpose tubes are intentionally constructed with various gases in the envelope. For instance,... -
Variations Of Vacuum Tube
Variations Of Vacuum Tube Frequency Conversion can be accomplished by many different methods in superheterodyne receivers. Tubes... -
Reliability Of Vacuum Tube
Reliability Of Vacuum Tube The chief reliability problem of a tube is that the filament or cathode...