Blackeunos Posted May 22, 2022 Share Posted May 22, 2022 Hi Everyone hope someone can give me a little guidance on this install. I have the Bachmann class 08 Malcolm model and am trying to fit the Hornby tts sound chip. So far I have the body off and the cab separated I have taken the socket off but not undone any wires. My plan unless someone can suggest a better way is to remove the socket and hard wire the chip in and place the chip in the cab roof. Drilling a small hole in the floor to feed the wires back and either fitting a sugar cube speaker in the cab or where the original socket was behind the grill. Has anyone got a better plan? Thanks and best wishes Link to post Share on other sites More sharing options...
Blackeunos Posted May 22, 2022 Author Share Posted May 22, 2022 Thanks Richard I will have a look at that, not sure if my skills are good enough for that. Link to post Share on other sites More sharing options...
Blackeunos Posted May 22, 2022 Author Share Posted May 22, 2022 (edited) Hi Richard, just to clarify your reply is it the 2 securing lugs that need to be removed or is it somewhere else? thanks Edited May 22, 2022 by Blackeunos Missed word Link to post Share on other sites More sharing options...
RMweb Premium Izzy Posted May 22, 2022 RMweb Premium Share Posted May 22, 2022 It is possible to fit both decoder and speaker in the front by removing the socket and cutting off the mounting lugs. I put the decoder in the open insulating bag and swopped the speaker out for a Zimo 20x28 which ( just) fits in the very front. I did have to hack a bit of the chassis away though I seem to remember. I also added a stay-alive which I put in the floor of the cab. I did post about it some years back in the RTR section but as all the photos are currently having a walkabout I'll post a few here in case they are of any help to you. You'll have to ignore that the motor got swapped out for a Mashima 1883 when the original failed after just 3 months...... And that the large capcitor I originally fitted in the cab got replaced by a much smaller tantalum pack I made. Bob 2 1 Link to post Share on other sites More sharing options...
Blackeunos Posted May 22, 2022 Author Share Posted May 22, 2022 Thanks Bob, very useful I will see what I can achieve in the next few days if I get the chance. Thanks stewart Link to post Share on other sites More sharing options...
Midnight-Freight Posted December 2, 2022 Share Posted December 2, 2022 I'm looking at fitting stay alive to my Bachmann 08 but if I could fit tts as well that would be great. Can you just confirm how you wired the stay alive into the tts chip please? Link to post Share on other sites More sharing options...
RAF96 Posted December 4, 2022 Share Posted December 4, 2022 Like this - two methods https://www.strathpefferjunction.com/adding-a-stay-alive-capacitor-to-a-Hornby-tts-sound-decoder/ Link to post Share on other sites More sharing options...
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