Kit: MX648 hard-wired; PowerCube9; SACC16; 8x Tantalums
K3 with body removed
The 8 pin socket is removed. The front socket posts cut off. The rear support post is cut flush with the worm cover. The worm
cover is shortened and the securing screw is also shortened. The front support pillar has a slot cut into it to allow the
pickup wires to pass through.
The Stay-Alive SACC16 and capacitors are assembled and attach to the decoder with insulation tape. The original motor wires
have been removed replaced with lengthened decoder wires to reach the motor. The speaker is attached to the chassis with double
sided sticky tape. The decoder and excess wires are pushed into the front of the boiler and the loco body re-fitted.
Photos and words courtesy of Roger Keen.
Kit: MX645R; Lurve7; SuperCap17000uF; Nano firebox LED
This time we decide to go with a bigger speaker, which requires the larger MX645 decoder, and a SuperCap, so excellent
stay-alive. To do this, the weight in the boiler has to be removed.
The decoder, speaker and capacitor are all wired up and packaged up in a neat bundle before installing - this fits very nicely
into the boiler once the weight is removed. We even retain the 8pin DCC socket, so the decoder simply plugs in.
The back plate is metal, so we have to do a bit of work to insert a nano LED for the firebox glow - drill it out, insulate, and
careful glue the LED into place making sure that the wire ends don't short against the metal.