Audio AUDIO TRANSFORMERS Power POWER TRANSFORMERS Choke CHOKES, INDUCTORS AND REACTORS Toroid TOROIDAL TRANSFORMERS AND COILS Hi Freq HIGH FREQUENCY TRANSFORMERS

Custom Transformers and Custom Magnetic Products

Since 1949, Transformer Manufacturers, Inc.’s (TMI) expertise in manufacturing quality custom designed transformers and magnetic products has enabled us to solve problems for our customers while meeting or exceeding their specifications and requirements.
We manufacture custom-designed transformers for a wide range of industries including:

Coil types include bobbin, layer, or stick wound, precision wound and toroidal.

Transformer manufacturing is our core business, and all products are proudly made in America. Transformer Manufacturers serves the global market from our facilities centrally located in the Chicago transportation hub.
Rely upon Transformer Manufacturers as your magnetics manufacturing partner for:

Transformer Types

Transformer Types photo
AUDIO TRANSFORMERS

Transformer Manufacturers, Inc. designs and manufactures high quality, precision, layer-wound transformers for the Class A audio industry.

ISOLATION TRANSFORMERS

Transformer Manufacturers, Inc. designs and manufactures isolation transformers, whose primary purpose is to isolate the AC source from your device or equipment. TMI can design to your custom requirements when you need to isolate and physically separate two circuits.

AUTOTRANSFORMERS

Autotransformers are non-isolating and are used to step-up or step-down the voltage of the AC input. Autotransformers from Transformer Manufacturers, Inc. have a single winding, which is tapped at various points along the winding, allowing you different voltages.

CHOKE/INDUCTORS

Choke transformers have high reactance to block or filter a specific frequency in an electronic circuit. Transformer Manufacturers, Inc. custom manufactures choke transformers to meet the particular requirements and space considerations for your application.

TOROID/INDUCTORS

Transformer Manufacturers, Inc. designs and manufactures Toroidal Transformers and Inductors that transfer electrical energy from one circuit to another.

Let’s Get Started

Send TMI a request for quote with your project requirements, and attach a print/drawing. We’ll respond quickly and start a dialog that will lead to the optimal solution to address your needs.

MADE IN THE USA

The TMI manufacturing quality management system conforms to ISO 9001:2008. Transformer Manufacturers' plant offers value-centered manufacturing that is totally dedicated to high quality and continuous improvement. Our products are made in the USA and incorporate the finest in materials and workmanship.