Classic UK Minitrix Models  -  Key Parts
Brushes for the motors in the 9F, 2MT and 2F locos are no longer supplied by Marklin.  However, this should not present too much of a problem. The original Trix pack contains two carbon brushes and two springs - the ones shown with the ruler for scale have been taken from a previously unopened Trix pack numbered 40-0159-00 - the kind used in the 9F locos and in all 3 Ivatt locos. 

Any carbon brush can be easily cut with a craft knife and shaped with a file and emery cloth. The springs are about the same diameter as the spring in n-gauge couplings, which can be obtained from Graham Farish. (part 379-405) The photo below should give you the information that you need to make your own. The brushes are approx 2mm cubes. The original Trix springs are approx 2mm in diameter and 5.5mm long. 

Maintaining Classic UK Minitrix Locos
The Minitrix trademark is currently owned by Märklin Inc.  Gebr. Märklin & Cie. GmbH, Stuttgarter Straβe 55-57, D-73033 Göppingen, Baden-Württemberg

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