How to fit a Zimo MS490N 6 Pin Mini Sound Decoder + stay-alive into a Hornby TT120 08 Shunter. Without any modification! Modeloco • TT:120 Hornby Class 08... Wooton Tor • 09.12.2023 - A sound d...
When I fitted my 08. I used a MS590N (smaller decoder) a sugar cube type speaker & a TCS KA2 stay alive. The sound file came from John at YooChoose. John provides a very good step-by-step guide on the website for this loco. It does however, require some slight modifactions. The speaker sits atop the worm drive, after cutting the plastic plate a bit shorter and wrapping the decoder in kaptan tape. I then cut the piece at the back of the decoder socket to allow the KA2 to sit in. The bonus with the KA2 is that you don't need an additional control board. The KA has this already fitted so it is just a case of soldering the 2 wires.After reassembly, I can make my 08 crawl over the Hornby TT deadfrog points and get about 25-30 seconds of sound & drive from the KA2.