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Do you have a lot of analogue locomotives lying around? But a digital system? Then here is the solution. This video shows how to install a decoder in an analogue locomotive. We are converting a HAG Re 4/4 II from the 80s to digital. German Version: • How to convert a AC Locomotive to DCC FACEBOOK → / trainroom.heggedal PATREON → / polybosstudio #modelrailroad #märklin #dcc 0:00 - Introduction 0:53 - Disassembly 1:51 - Motor conversion 5:10 - PCB installation 5:36 - Power supply and motor connections 7:11 - LED 9:20 - Wheel insulation 9:52 - Traction tyres 10:41 - Conclusion