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Transformer Equipment Ltd specialises in the design, manufacture and supply of auto, audio, isolation and charger transformers. We offer fast track prototyping, a full design service, and can build transformers to various national and international standards, including DEF 5214, BS3535 and EN60 742. With over 65 years of design and manufacturing experience, we’re able to develop customised solutions to meet almost all requirements. 


Transformer Equipment Ltd was set up by Mr L.H Cooper back in 1948. Today it is one of the largest transformer suppliers in the market, having approval from the likes of the BBC, BT, Siemens-Plessey, GEC, Marconi and the MoD. Most of our systems are manufactured to the MoD’s DEF 5214 Standards. 


Our reputation has been built upon quality products and first-class transformer design services. It’s a reputation we aim to uphold through the implementation of an ISO 9002 accredited quality management system, something which we are currently working towards. 


If you would like to find out more about our transformers or our transformer design services, visit Transformer Equipment Ltd online or get in touch with our sales and service team on  01304 612551. 


Miniature Ferrite Transformers Assemblies

In-house production facilities and computer-aided design systems - together with our considerable manufacturing experience - allow us to offer a complete transformer manufacturing service that includes all aspects of design and production. Whatever the application, we can provide a solution. All items are individually made and are rigorously tested for accuracy and uniformity. 


As well as standard transformer configurations, Transformer Equipment Ltd is able to produce a variety of miniature ferrite transformer assemblies. Get in touch to find out more.


Pot Core Transformers

We can also produce a range of pot core transformers and inductor assemblies, from 14m/m to 45m/m, RM6 to RM10. In manufacturing our transformers we can work from either our own drawings or from those provided by the customer. Drawings produced by Transformer Equipment Ltd are based on the requirements of the application. Before leaving our facility, all transformers are thoroughly tested and inspected for quality, safety and performance.

Custom Built Transformers for Guitar Amps and Line Matching Output

Our custom-built Audio transformers include amplifier (Guitar or HiFi), line matching output, input and microphone transformers for applications up to 1000 Watt (100 Volt or 70 Volt, 16 Ohm, 8 Ohm or 4 Ohm).


Our Guitar Amplifier Transformers are in award winning amps rated by Guitar Magazine, Sound On Sound and Guitarist Magazine.


For more information, or to discuss your design requirements with an expert, just give us a call on 01304 612551 .


We look forward to receiving your enquiry.

Customised Transformers

Our E, EC and ETD cored transformers and inductors are usually made according to the customer’s design. In-house production facilities and CAD systems enable us to develop transformers from customer drawings extremely quickly and cost-effectively. Find out more by visiting Transformer Equipment Ltd online or contact our design professionals on 01304 612551.

Mains Transformers

Our mains transformers are individually designed and manufactured using standard frame sizes from 1 - 10KVA single phase or 30Kva 3Phase. There are no limits on quantity: whether you need one transformer or a thousand, we can provide them. All of our design and manufacturing processes take place in-house, which means we can offer economical solutions on all orders. Visit us online to find out more.

Instrument Grade Transformers

We can produce instrument grade transformers with up to 10 independent secondary windings. Each unit is custom-built and individually made for greater accuracy. To discuss your requirements with a specialist, get in touch on 01304 612551. We have over 65 years of experience in the design and manufacture of customised transformers, and we use every bit of it to ensure product quality and complete customer satisfaction.

Standard Catalogue Equivalent Transformers

Also available are a range of standard, catalogue-equivalent transformers which may be customised (with small design changes) at very little additional cost. We can cater for all quantities and can build them to our own design or to your drawings. 


Other transformer products offered by Transformer Equipment Ltd include:

  • Auto transformers
  • 3-phase transformers
  • Halogen lighting transformers

Visit us online or get in touch to find out more. 


Contact Transformer Equipment Ltd

Transformer Equipment Ltd is a well-established UK company based at the Crystal Business Centre, Ramsgate Road, Sandwich in Kent. We can be contacted on our national or international phone numbers, our fax number and by email, details of which are available at our website. We have also included an online enquiry form for requests and information. Once we have assessed your details we will reply to you as soon as possible. Do not hesitate to contact our experienced advisors for product purchases or product information.

Our Products and Services

Transformer Equipment Ltd is a well-established UK company specialising in the field of auto, audio, isolating and charger transformers. We offer an extensive product range including mains transformers 10kva, 100 amps or 10,000v as well as three phase transformers. We also offer a complete design service and welcome customised projects as well as special requests from our customers. Transformer Equipment Ltd also offers a fast track prototyping service at competitive prices. Please visit the Transformer Equipment Ltd website for more information on our extensive product range and contact one of our experienced advisors for product information and purchasing.



Registration Number: 00507890
VAT Number: GB201 5238 17
Registered at Companies House:13 May, 1952 (70 years ago)
No of Employees: n/a
Annual Turnover: n/a
Company Type:
  • Manufacturer

Opening Times

Monday 09:00 AM - 05:30 PM
Tuesday 09:00 AM - 05:30 PM
Wednesday 09:00 AM - 05:30 PM
Thursday 09:00 AM - 05:30 PM
Friday 09:00 AM - 05:30 PM
Saturday Closed
Sunday Closed

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