Example 1: Simple Zimo Sound

Kit: Zimo MX644D with Zimo LS26X20X08-1W Dumbo speaker and 470uF stay-alive

Simple install in this beautiful Bachmann collector's edition S&D 4F, just with the capacitor insulated and slotted underneath the decoder, which raises it very slightly at the back.

Images kindly supplied by Rod Weekes.

Example 2: Better speaker and SuperCap Stay-Alive

Kit: MX644D; IceCube28X18X08-2W; LifeLinke+SuperCap17000uF

With this 4F we aim to fit a better speakaer (dual IceCube) as well as a good stay-alive (SuperCap 17000uF), but while retaining all of the metal weights in the tender...

We opt for the 8mm height version of the IceCube28X18 (the 9mm is marginally too tall to go in with the tender body back on properly, so the 8mm is perfect).

Fix the speaker onto the metal weights using thin double-sided tape, then solder wires to the model's speaker tabs. Note that the speaker hangs slightly over the end of the weights, which will give us enough room in front of it (but below the decoder) to fit the SuperCap later.

Wire in the LifeLink PCB and the 17000uF SuperCap, covering with Kapton tape.

Tuck the SuperCap underneath the decoder, and the LifeLink underneath the model's PCB. Note that the decoder will sit at a slight upward angle, but not too severe - this is fine, and actually makes for a better electrical connection with the pins anyway!

Please note that these guides are provided as useful resources for you, as-is. YouChoos cannot be held responsible for errors in the information, or for any damage caused to your models or equipment if you choose to follow any of the steps detailed here.