Doehler and Haass

Doehler and Haass

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Manufacturer: Doehler and Haass

Summary: TRIX was the first manufacturer to present the"SelecTRIX"system developed by Doehler & Haass. This was a fully functional digital system that already had load control that enabled authentic driving for the first time. It took many years for competitors to be able to offer this decoder technology. During this time, Doehler & Haass has developed Application Specfic ICs (ASICs). As early as 1984, it was possible to produce the world's smallest locomotive decoder at the time. Since then, ASICs have been further developed and ensures, among other things, the excellent motor control (Super Soft Drive / SSDĀ®), which is universally praised by customers. Doehler & Haass products support all common model railway standards, such as SX1, SX2, DCC, MM, ABC and RailCom. They are not only represented on the market under Doehler & Haass, but well-known manufacturers incorporate them into their own components (OEM business).

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General information
Phone +49 (0)89 95 47 49 25 (for general questions)URIs of the form "+49 (0)89 95 47 49 25 (for general questions)" are not allowed.
Main URL Main URL
URL to manuals Product Manuals
Date Opened 1975
Date Closed
Device Types Mobile Decoder, Other

Doehler & Haass Control Systems GmbH & Co. KG is a European manufacturer of command control components.

They make a number of decoders that work with Selectrix SX1 and SX2, as well as NMRA DCC. Many of their products also support Asymmetric DCC.

D&H developed the Selectrix command control system, and are the sole supplier of the ICs required. They shopped Selectrix to various manufacturers in Europe beginning in 1980, with no interest. In 1987 Trix began selling and supporting SelecTRIX under an exclusive marketing agreement.

See their website for more information. Note: Website is in German.

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