More than 35 years of experience

in production and development of transformers

As a medium-sized company we have taken over in September, 2006 the succession of the company König-Wörle-Beer. Thanks to the experienced team we look back at a more than 35-year-old developing and production activity.

Flexibility and reliability

GST is specialized in custom-made products

Flexibility in terms of development and production is very important to us. These include rapid, individual and reliable advice and appropriate treatment of your inquiries and orders. Of course you have constant contact persons in our company.

Sophisticated quality control

Transformers "Made in Germany"

Thanks to elaborate quality control with using modern instrumentation and partial discharge testing in-house, we assure you high quality products "Made in Germany”. Among our long standing clients are many well-known industrial companies located in Germany and also worldwide. For locally-based customers we offer to deliver the products directly.

Our production program

  • Single phase dry transformer
  • Three phase dry converter
  • Printtransformers
  • Power transformers as separating or saving transformers
  • Halogen lamp transformers
  • High voltage transformers for microwave technology
  • Heating transformers for microwave technology
  • Transformers for audio and tube projects
  • Smoothing reactors and screen reactors for microwave technology
  • Alternating current single-phase and three-phase
  • Coils of all kinds, also free-standing winding systems
  • Current sensors / measuring coils for welding technology in all diameters
  • Chokes
  • Transmitters of all kinds
  • Customized DC power supplies
  • Stabilized DC power supply according to customer specifications
  • Current sensors
  • High voltage rectifier units for microwave technology
  • Special developments according to customer requirements
  • Various mounting options, housing installation, potting or vacuum impregnation


    Production of small appliances, power supplies and switch cabinet construction