45V Toroidal Transformer – 500W Copper Transformer for Amplifiers

45V Toroidal Transformer

is a 500W copper transformer designed for high-power audio amplifiers, custom amplifier builds and electronics projects requiring multiple AC voltage outputs. It provides a 45V-0-45V main output, together with 17V-0-17V and 0–15V auxiliary outputs, giving you several voltage options for different sections of an amplifier or power supply system.

Its toroidal construction makes it a practical choice for audio applications where a compact transformer with multiple secondary windings is required.

Key Features

45V-0-45V Main Output

The main feature of this 45V Toroidal Transformer is its 45V-0-45V AC secondary winding.

This type of centre-tapped output is commonly used in amplifier power-supply designs. After suitable rectification and filtering, it can form part of the power supply for an amplifier circuit.

The actual DC voltage produced after rectification will depend on the circuit design, rectifier arrangement, load and filtering components, so the AC winding voltage should not be treated as the final DC output voltage.

17V-0-17V Secondary Output

In addition to the main 45V-0-45V winding, the transformer provides a 17V-0-17V AC output.

This additional winding can be useful for circuits that require a lower symmetrical AC supply, such as preamplifier, control or other supporting sections of an audio project.

Having a separate secondary winding means the lower-voltage section can be powered independently from the main amplifier supply.

0–15V Auxiliary Output

The transformer also includes a 0–15V auxiliary AC output.

This provides another option for lower-voltage electronics within a project. It can be incorporated into an appropriately designed auxiliary or control power supply where the required voltage falls within the winding’s range.

500W Copper Construction

The transformer has a 500-watt rating and uses copper windings.

Copper is widely used for transformer windings because of its good electrical conductivity. The 500W rating makes this transformer suitable for projects designed around this power level, provided the complete circuit and load requirements are correctly matched.

When building an amplifier, the transformer should be selected together with the amplifier board, rectifier, filter capacitors and other power-supply components.

Toroidal Design for Amplifier Projects

The toroidal transformer design is particularly popular in audio equipment and amplifier projects.

Its circular core and winding arrangement provide a compact transformer format that works well in equipment where available space matters. This makes it a practical option for custom amplifier builders and electronics technicians.

Suitable for Juakali Amplifiers

The 45V Toroidal Transformer is suitable for juakali amplifier builds, custom audio amplifiers and DIY electronics projects.

The multiple outputs give amplifier builders more flexibility when designing systems that require separate supply voltages for power amplifier, preamplifier and auxiliary circuits.

Whether you are building a new amplifier or replacing a transformer in an existing project, make sure the winding voltages and power rating match the requirements of the amplifier circuit.

Common Applications

Multiple AC Outputs

One of the main advantages of this transformer is having several secondary outputs in one unit.

The 45V-0-45V winding can be used for the main amplifier supply, while the 17V-0-17V winding can provide power for lower-voltage sections. The 0–15V auxiliary output provides another option for circuits requiring a lower AC supply.

This makes the transformer useful for amplifier designs where several different supply voltages are needed.

For general information on transformer operation and power-supply design, transformer fundamentals can help when planning an electronics project.

Technical Specifications

Package Includes

Choosing the Right Transformer for an Amplifier

When selecting a transformer for an amplifier, the secondary voltage and power rating need to match the amplifier circuit.

The 45V-0-45V output should be checked against the requirements of the amplifier board and its intended power supply. The rectifier and filter capacitors must also be appropriately rated for the resulting supply.

The additional 17V-0-17V and 0–15V outputs can then be used where the amplifier design requires separate lower-voltage supplies. For general information on how transformers work in electronic power supplies, transformer fundamentals provide useful background when planning an electronics project.

A Practical 45V Transformer for Audio Projects

The 45V Toroidal Transformer combines a 500W power rating, copper windings and three useful AC output configurations.

With 45V-0-45V, 17V-0-17V and 0–15V outputs, it is a versatile option for juakali amplifiers, DIY audio systems, custom amplifier builds and other electronics projects requiring multiple AC supply voltages.

It is a practical choice for builders who need a 45V-0-45V toroidal transformer with additional secondary outputs in one unit.