voltage amplifier tube
81Voltmeter — Demonstration voltmeter from a physics class A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage… …
82History of the transistor — Invention of the transistor= The first patent [patent|US|1745175|Julius Edgar Lilienfeld: Method and apparatus for controlling electric current first filed in Canada on 22.10.1925, describing a device similar to a MESFET] for the field effect… …
83MOSFET — Two power MOSFETs in the surface mount package D2PAK. Operating as switches, each of these components can sustain a blocking voltage of 120 volts in the OFF state, and can conduct a continuous current of 30 amperes in the ON state, dissipating up …
84Car audio — Car audio/video (car AV), auto radio, mobile audio, 12 volt and other terms are used to describe the sound or video system fitted in an automobile. While 12 volt audio and video systems are also used, marketed, or manufactured for marine,… …
85Negative resistance — is a property of some electric circuits where an increase in the current entering a port results in a decreased voltage across the same port. This is in contrast to a simple ohmic resistor, which exhibits an increase in voltage under the same… …
86Opto-isolator — This article is about the electronic component. For the optical component, see optical isolator. Schematic diagram of an opto isolator showing source of light (LED) on the left, dielectric barrier in the center, and sensor (phototransistor) on… …
87Clipping (signal processing) — An oscilloscope screen of an amplifier clipping. The amplifier should be outputting a clean sine wave with rounded tops and bottoms, but instead they are cut off flat, or clipped . Clipping is a form of distortion that limits a signal once it… …
88generator — Synonyms and related words: AC motor, Corliss engine, Otto engine, PCV valve, Wankel engine, accelerator, actuator, aeromotor, agent, air engine, alternator, ammeter, amplifier, ancestors, anode, apprentice, architect, armature, artificer, artist …
89Carbon microphone — The carbon microphone, also known as a carbon button microphone (or sometimes just a button microphone) or a carbon transmitter, is a sound to electrical signal transducer consisting of two metal plates separated by granules of carbon. One plate… …
90Output TransformerLess — (audio amplifier) = In the larger scope of vacuum tube audio amplifiers Output TransformerLess (OTL) describes a specific subset of audio power amplifier topologies, all of which have a single common attribute: unlike conventional vacuum tube… …
