Bachmann OO Gauge Class 47 diesel (PluX22 version)

Kit: MS450PluX22; SuperCap17000uF

Bachmann's refreshed Class 47 has 2 onboard speakers and a PluX22 DCC socket, so very simple to convert to sound using an MS450PluX22 decoder.

Blanking plate out, we note the SugarCube speaker on top of the PCB, and a larger round speaker with enclosure underneath the PCB.

We also decide to add a 17000uF SuperCap for stay-alive - 6800uF would fit the same space, and an MGOLANG would also do an excellent job.

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