How to Fit a 21-Pin DCC Sound Decoder | Beginner's Guide

Learn how to fit a 21-pin DCC sound decoder and speaker into a locomotive in this step-by-step guide.

In this video, we demonstrate the installation process using the BR (Early) Class A3 – 60063 'Isinglass' with Steam Generator as our example, covering everything from safely removing the locomotive body and locating the decoder socket to fitting the decoder, installing the speaker and reassembling the locomotive.

Whether you're new to DCC or looking to add sound to your model railway, this guide covers the key things to consider when carrying out a decoder installation.

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