Kernow OO Class 41 Warship with Zimo Sound and SuperCap stay-alive

Kit: MX644C; IceCube40X18X10-2W; SACC16 + SuperCap17000uF

Eagerly awaited, Kernow's Class 41 North British Warship arrives. Designed for a 6-function DCC decoder, we select Zimo's MX644C.

No screws, but the body needs a bit of persuasion to allow the chassis to drop out - the noses are particularly tight, which is no bad thing as it will stay secure when handling. Inside we find a 21pin socket and a very large space prepared for a speaker.

The MX644C replaces the blanking plate.

Connection pads for the speaker are provided on the side of the model's PCB. Tin these up, and connect up the chosen speaker.

We try out our largest IceCube, measuring 55X18X10, which is 4 ohm, 2W, secured with a couple of slabs of BlackTack. This overhangs the motor flywheel, which probably doesn't matter, but we elect to swap out for the slightly smaller 40X18X10 version, which performs impressively well, and we have acres of space to work with.

Many would say that adding a stay-alive to a model like this is overkill, and they'd probably have a point, but adding one will make reliable running of this model a reality even on exhibition layouts at an absolute crawl, which is where this one is headed - it will never stall! So we grab a SACC16 stay-alive connection kit and bring in a SuperCap 17000uF, for which there is plenty of space at the opposite end to the speaker.

All done ready for photo shoot...

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