pinza55007 Posted December 11, 2009 Share Posted December 11, 2009 I have a SWD Deltic sound decoder to fit in one of the original style Bachmann Deltics (55012). how easy is it to do, and where is best place to locate speaker. I have never done any machining/milling of the chassis etc, so what sort of tool would I need to do this? I'm hoping to do several different Diesel locos eventually, so was just wondering if there are any websites with step by step instructions, (wasn't there one called electric nose or similar), with indications of easy or hard installation etc? Im sure a few other novices like myself would need any help we can get installing sound, as this hobby gets more complicated and expensive, we don't want to make silly errors. Colin Link to post Share on other sites More sharing options...
Piemanlarger Posted December 11, 2009 Share Posted December 11, 2009 i presume the deltic you have is different from the deltic used to show just what you are doing, in the Jan railway modeler? Link to post Share on other sites More sharing options...
RMweb Gold Mr.S.corn78 Posted December 11, 2009 RMweb Gold Share Posted December 11, 2009 I have a SWD Deltic sound decoder to fit in one of the original style Bachmann Deltics (55012). how easy is it to do, and where is best place to locate speaker. I have never done any machining/milling of the chassis etc, so what sort of tool would I need to do this? I'm hoping to do several different Diesel locos eventually, so was just wondering if there are any websites with step by step instructions, (wasn't there one called electric nose or similar), with indications of easy or hard installation etc? Im sure a few other novices like myself would need any help we can get installing sound, as this hobby gets more complicated and expensive, we don't want to make silly errors. Colin Hi, i have changed the speakers in the current factory sound deltic. I placed a bass enhanced under the grills and a bass relex in the tanks in the bottom. As for your model i have yet to install one in there, i would suspect you would be able to place a bass enhanced speaker under the grill without to much modification. As for adding more speakers it all depends on how much work you would like to do. As for milling/machining you will need a milling machine or a lathe and i would suggest a person who knows how to use it as you can't put metal back on if you take to much off. cheers Simon Link to post Share on other sites More sharing options...
Guest 838rapid Posted December 11, 2009 Share Posted December 11, 2009 If you remove the chassis plastic bit and take the weight out you can get a bass reflex inside there. It also involves thinning the sides out and removing some plastic in the middle section. It really does improve the sounds and is what SWD recomend. Link to post Share on other sites More sharing options...
shedman Posted December 12, 2009 Share Posted December 12, 2009 There is an article in January 2010 Railway Modeller (just out) on how to do this. No connection. Link to post Share on other sites More sharing options...
Lady_Ava_Hay Posted December 13, 2009 Share Posted December 13, 2009 I read your OP a couple of times. I suspect that you are attempting to install sound to an old Bachmann (Mainline?) Deltic model. This will almost certainly be a split chassis. This brings other problems to bear. I have never done one of these but, in general, any form of live chassis requires considerable care to ensure that the motor terminals are completely isolated from the chassis and pick ups and that any current flowing through the motor has come from the decoder ONLY. Otherwise, the Deltic clag will be the only smoke that you see as the decoder dies an unnatural death. I have had to modify a split chassis and hacksaw and file do work albeit slowly. You are basically making space for the speaker and enclosure of your choice. If there is room in the fuel tanks underneath that is a good place for a speaker. Insulate everything as even a speaker wire touching a live chassis will give problems. If the chassis is a modern solid block with central motor and drive shafts to both bogies, then you will need to use a vertical mill to make a speaker enclosure. Installing decoders in either type is actually quite easy. It is the speaker install that will require ingenuity and surgery. Link to post Share on other sites More sharing options...
ScottMurray Posted December 14, 2009 Share Posted December 14, 2009 I read your OP a couple of times. I suspect that you are attempting to install sound to an old Bachmann (Mainline?) Deltic model. This will almost certainly be a split chassis. This brings other problems to bear. Mainline never made a Deltic. The Bachmann version has only ever been produced by them. As far as I am aware, Bachmann have never used split chassis construction on diesels. Link to post Share on other sites More sharing options...
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