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Amplidyne Transformers: Increasing Voltage for Audio and Radio Applications

Amplidyne is a brand name for a type of electrical transformer that is used to increase the voltage of an alternating current (AC) electrical signal. It is typically used in audio and radio applications where a high voltage is required to drive a load, such as a speaker or a radio transmitter.

An amplidyne transformer consists of two coils of wire, one called the primary winding and the other called the secondary winding. The primary winding is connected to the AC power source, and the secondary winding is connected to the load. When an AC voltage is applied to the primary winding, it creates a magnetic field that induces a voltage in the secondary winding. This induced voltage is proportional to the primary voltage, but can be much higher due to the transformer's gain ratio.

The gain ratio of an amplidyne transformer is defined as the ratio of the secondary voltage to the primary voltage. For example, if a 100V AC signal is applied to the primary winding of an amplidyne transformer with a gain ratio of 10, the secondary winding will produce a 1000V AC signal. This allows the load to be driven by a much higher voltage than the power source can provide on its own.

Amplidyne transformers are commonly used in audio applications such as public address systems, radio broadcasting, and musical instrument amplifiers. They are also used in medical equipment such as X-ray generators and in industrial applications such as motor control and lighting systems.

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