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Toroidal & EI Conventional 


We are able to design any transformer for your application. We manufacture Toroidal and EI Transformers tailored to the needs of our customers. 

Power Transformer

A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction.


An autotransformer (sometimes called autostep down transformer) is an electrical transformer with only one winding. In an autotransformer, portions of the same winding act as both the primary and secondary sides of the transformer.

Output Tube Transformers
Output Tube Transformers

Audio transformers are those specifically designed for use in audio circuits to carry audio signal.  Tube amplifiers almost always use an output transformer to match the high load impedance requirement of the valves (several kilohms) to a low impedance speaker

1. Quality

2. Reliability

3. Custom Products

Brief companies history

T.Giatras Transformers was established in 1978 by Timotheos Giatras  and engaged in production of conventional EI transformers and electric motor repairs. Since 1985, we are dedicated exclusively to the production of transformers. In 1990 entered in the field of toroidal transformers. 

Today our company produces power transformers (toroidal & conventional), for every application, in accordance to customer requirements and audio transformers.


From 1978 until Today our products and services are characterized for their high quality and design.

The possibility of produce a product made for you ensures that our customers get exactly what they want.



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