Online Encyclopedia
Magnetic amplifier
The magnetic amplifier is an electromagnetic device for amplifying electrical signals. It uses a non-linear property of a certain class of transformer cores. It was invented early in the 20th century, and was used as an alternative to vacuum tube amplifiers where robustness and high current capacity were required. It has now been almost superseded by the transistor-based amplifier, except in a few extremely demanding military applications.
Last updated: 10-24-2004 05:10:45