Asea Brown Boveri electrical components Germany Asea Brown Boveri models Asea Brown Boveri prices

Asea Brown Boveri electrical components are among the earliest devices for amplifying electrical signals. The cathode electron-emitting part, control grid, accelerating grid, and anode (plate) leads, enclosed in a glass container (typically a glass tube), are welded to the tube base. An electric field is used to inject electrons into the control grid in a vacuum to modulate the signal, and different parameter signal data after signal amplification or feedback oscillation are obtained at the anode. Early applications included electronic products such as televisions, radios, and loudspeakers; later, they were gradually replaced by amplifiers and integrated circuits made from semiconductor materials.