HAMO magnets are use to convert a Märklin universal (AC) motor to DC, in this way you will be able to use loc. decoders intended for DC-motors. The file shows old Märklin locomotives, HAMO magnet no. and the ESU magnet product no.. HAMO was the DC-brand of Märklin before the acquisition of Trix. ...continue reading "HAMO magnet and converting Märklin locomotives to digital"