Last Updated: 13 March 2026

How to convert N Gauge Graham Farish Class 108 to DCC Sound

Get your model DCC sound converted from £50.00

This guide covers the following models:

371-875Graham FarishClass 108M50628Green
371-875AGraham FarishClass 108B5Green
371-876Graham FarishClass 108M50976Blue & Grey
371-876AGraham FarishClass 108M50964Blue
371-876DSGraham FarishClass 108Blue
371-877Graham FarishClass 10853959Blue & Grey
371-877AGraham FarishClass 108Blue
371-878Graham FarishClass 108E53931Blue
371-879Graham FarishClass 108B4Green
371-880Graham FarishClass 108Green
371-885Graham FarishClass 108E50626Blue
371-885AGraham FarishClass 108Blue
371-886Graham FarishClass 108B6Green
371-887DSGraham FarishClass 108Green
371-888Graham FarishClass 108White & Blue

It may apply to other similar models, or models using the same tooling.

Step 1 - Dummy End: Remove Body

First we will convert the dummy (non-motorized) car to DCC.

Remove the body by gently pulling upwards, starting at one end first.

Remove the two screws holding the PCB in place, and remove the PCB. If you are fitting a stayalive, cut out part of the seating in the middle to make room for it.

Fit DCC Sound to Graham Farish Class 108

Step 2 - Fit Decoder

This model has a 6-pin socket. Here we are using an ESU LokPilot 5 Micro 6-pin decoder with an optional stayalive kit attached.

Fit the decoder into the socket, and position the stayalive kit using glue or blacktack.

Refit the PCB and clip the body back on.

Fit DCC Sound to Graham Farish Class 108 Fit DCC Sound to Graham Farish Class 108

Step 3 - Motorized End: Remove Body

Now for the more complicated task of fitting DCC sound to the motorized end.

Again, remove the body by gently pulling upwards, starting at one end first. Remove the two PCB screws, and then unclip the PCB.

Fit DCC Sound to Graham Farish Class 108

Step 4 - Modify Seating

If fitting a stayalive, cut away some of the seating to make room.

Fit the stayalive kit and hold it in place with some glue or black tack.

Fit DCC Sound to Graham Farish Class 108 Fit DCC Sound to Graham Farish Class 108

Step 5 - Fit Sound Decoder

This model comes with a speaker pre-fitted. However, the PCB on top of it needs to be removed to create some space. Solder the speaker wires directly to the speaker terminals.

Fit the ESU LokSound 5 Nano decoder, using a 6-pin to Next18 adapter.

Add some kapton tape to hold everything in place.

Fit DCC Sound to Graham Farish Class 108

Step 6 - Refit Body

Refit the body, and the conversion is complete.

Fit DCC Sound to Graham Farish Class 108