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The locomotive twitches and jolts in different places on the system? The lights also go on and off? Are the tracks as clean as they can be? Then you can try using a buffer capacitor. This is particularly interesting for sound models, because nothing is more annoying than a stuttering sound. I'll show you how to build a buffer capacitor yourself and install it in this video. Parts list: Capacitor: 25 volts 2200 microF Diode: 4007N1 Resistor: 100 Ohm 1/4 Watt Connector: PCB connector 2.54mm pitch Chapters: 00:00 Introduction 04:30 Required parts 09:19 The theory 11:26 Assembling the individual parts 15:52 Installation in the model 23:37 Testing the buffer capacitor