Stabilizers

The Stabilizers were an American pop/rock duo founded in the early 1980s by musicians Dave Christenson and Rich Nevens. With Christenson on lead vocals and Nevens on guitars and occasional keyboards, they spent the first few years touring the Pennsylvania area and recording original compositions on a 4-track recorder. Then, in 1985, they were signed to Columbia Records and in 1986, released Tyranny, their first and only album. The "Tyranny" single failed to chart, and for the next five years, The Stabilizers disappeared from view. However, in 1991, an unreleased track from the Tyranny sessions, "Maybe This Time," surfaced on the soundtrack to the film If Looks Could Kill. Although no additional music has been released from the band since then, Tyranny has been re-released digitally via the iTunes Store.

A voltage stabilizer is a type of household mains regulator which uses a continuously variable autotransformer to maintain an AC output that is as close to the standard or normal mains voltage as possible, under conditions of fluctuation. It uses a servomechanism (or negative feedback) to control the position of the tap (or wiper) of the autotransformer, usually with a motor. An increase in the mains voltage causes the output to increase, which in turn causes the tap (or wiper) to move in the direction that reduces the output towards the nominal voltage.

Many simple DC power supplies regulate the voltage using a shunt regulator such as a zener diode, avalanche breakdown diode, or voltage regulator tube. Each of these devices begins conducting at a specified voltage and will conduct as much current as required to hold its terminal voltage to that specified voltage. The power supply is designed to only supply a maximum amount of current that is within the safe operating capability of the shunt regulating device (commonly, by using a series resistor). In shunt regulators, the voltage reference is also the regulating device.

Linear regulators are based on devices that operate in their linear region (in contrast, a switching regulator is based on a device forced to act as an on/off switch). In the past, one or more vacuum tubes were commonly used as the variable resistance. Modern designs use one or more transistors instead. Linear designs have the advantage of very "clean" output with little noise introduced into their DC output, but are less efficient and unable to step-up or invert the input voltage like switched supplies. Entire linear regulators are available as integrated circuits. These chips come in either fixed or adjustable voltage types.