Tazzi Tiger Australia Posted February 18, 2018 Share Posted February 18, 2018 Fitting issues with Class A1 & A3 R8106 - TTS sound decoder in OO Hornby Flying Scotsman R3086. And Class A4 R8107 - TTS sound decoder in Mallard locomotive from set R1202.I need to fit the speakers in the front of the locomotives, but the supplied speaker in both TTS sound decoders are too large.The TTS sound deocder R8121 - Class 66 has a smaller speaker that might fit in the front of both locomotives. But can this be purchased separately? or source for somewhere?Kind regardsTazzi Tiger Australia Link to comment Share on other sites More sharing options...
Fishmanoz Posted February 18, 2018 Share Posted February 18, 2018 Hi TT, welcome to the forums. You need a sugar cube speaker. There are more threads here on them than you can jump over. Do a forum search on sugar cube. Link to comment Share on other sites More sharing options...
96RAF Posted February 18, 2018 Share Posted February 18, 2018 Any replacement speaker should be 8 ohm impedance and 1 Watt rated. If lesser impedance you risk overdriving the amplifier with the higher volume gained and if higher impedance you have to drive the amplifier harder to get the same volume level. Rob Link to comment Share on other sites More sharing options...
Tazzi Tiger Australia Posted February 19, 2018 Author Share Posted February 19, 2018 thankyouFishmanoz & RAF96I will look for suitable sugar cube speakersregardsTazzi Tiger Australia Link to comment Share on other sites More sharing options...
robert_black Posted February 20, 2018 Share Posted February 20, 2018 Just got a tts decoder for a Mallard, The speaker is obviously too nig to fit in the body. Secondly I have noidea how to take the tender apsrt. Also if I foit a sugar cube speaket which one? It also occurs to me why do Hornby sell kiyt that is recommended for a loco bugt don't fit ? Link to comment Share on other sites More sharing options...
Howbi Posted February 20, 2018 Share Posted February 20, 2018 Look up the service sheet for your particular model A4, that will tell you how to remove the tender body........decide what space you have available to fit a 'sugar cube' speaker then get the largest to fit in the space rated at 8 ohms, 1 watt........some newer locos have a pre-designed space for the round speaker, older ones don't.......it is a budget price product so it needs fettling in many cases...........HB Link to comment Share on other sites More sharing options...
96RAF Posted February 21, 2018 Share Posted February 21, 2018 Just got a tts decoder for a Mallard, The speaker is obviously too nig to fit in the body. Secondly I have noidea how to take the tender apsrt. Also if I foit a sugar cube speaket which one? It also occurs to me why do Hornby sell kiyt that is recommended for a loco bugt don't fit ?Any idea how many different Mallard variations there are . Times that by the number of other loco types and variants and you would need as many bespoke kits as you have R numbers in the catalogue. Impossible to market at any price, never mind the TTS price. As stated modelling skills are required not plug and play skills.Rob Link to comment Share on other sites More sharing options...
The Doc Posted February 21, 2018 Share Posted February 21, 2018 I spent most of Sunday afternoon fitting an A3 TTS speaker/decoder into A3 Minoru, which came DCC ready and with a space in the tender for a speaker clearly indicated, but the TTS speaker wouldn't fit (which surprised me since it is the latest loco drive model). So I had to hack away most of the moulding beneath the removable coal load. It was relatively hard work because although the plastic wasn't that thick, it was very awkward to get to and the handrail on one side of the tender got damaged in the process. It took several adjustments to get it right. Link to comment Share on other sites More sharing options...
WilliamDavid Posted February 21, 2018 Share Posted February 21, 2018 The Minoru is designed to take the supplied round speaker under the tender weight.If a round enclosure is supplied, it needs to be discarded, and the back of speaker sealed to improve bass. Link to comment Share on other sites More sharing options...
96RAF Posted February 21, 2018 Share Posted February 21, 2018 We seem to be losing our modelling skills in favour if its not P-n-P then I’m getting a lawyer..I remember as a spotty youth taking anything and everything to bits to suss out how it worked and could I improve it , or even put it back together..I used to rewind slot car motors by experiment to see which gauge wire and how many turns would best suit the track I ran on..I used to build model aeroplanes with the most bizarre aerodynamic configurations just to see if they would fly..I was trying to motorise Airfix car kits before we even had motors small enough to fit in them..Come on people step outside the box and stretch your mind and improve your skills. Someone used to have the signature line - don’t give a kid a computer game, give him a lawnmower engine to take apart - great advice..Rob Link to comment Share on other sites More sharing options...
walkingthedog Posted February 21, 2018 Share Posted February 21, 2018 I’ve been pushing this for ages Rob. We need more railway modelling as opposed to having a model railway. Fat chance, some people seem unable to even look things up for themselves. Never mind. 😀 Link to comment Share on other sites More sharing options...
TrainDriverJ Posted February 21, 2018 Share Posted February 21, 2018 Whilst I appreciate that there is a miriad of combinations I still can't understand why Hornby didn't use a much smaller speaker at the design stage for their stand alone sound decoders and subsequent model releases. This would have alleviated most of the problems that are cropping up here, especially in the older models, making it a more pleasurable experience. Certainly for people less proficient in certain skills. Also whilst primarily a hobby for people interested in modelling and expanding their skills there are some who do just want it easy to do. Personally I would make, if at all possible, every effort to cater for both. Link to comment Share on other sites More sharing options...
robert_black Posted February 23, 2018 Share Posted February 23, 2018 I did airfix planes,engines etc etc but I'm not sure ripping a perfectly good model loco apart is"modelling". Link to comment Share on other sites More sharing options...
96RAF Posted February 23, 2018 Share Posted February 23, 2018 I did airfix planes,engines etc etc but I'm not sure ripping a perfectly good model loco apart is"modelling".Ripping anything apart is not modelling, any fool can do that. Modifying and/or building a loco to achieve a certain requirement and standard can be seen as modelling - in my view anyhow. Link to comment Share on other sites More sharing options...
Tazzi Tiger Australia Posted February 24, 2018 Author Share Posted February 24, 2018 Hello all train enthusiasts I have fitted a LokSound 50326 (8 ohms x 1 watt) sugar cube speaker, in the Flying Scotsman locomotive under the steam funnel, held in place with masking tape (remember to unsolder the speaker wires at the speaker).I tested the original speaker during programming the functions into the iPad. The bass sound is a little better then Lok Sound 50326 speaker but LokSound (14mm x 12mm x 5.5mm) fits easily inside the locomotive.The LokSound speaker does not polarity markings positive / negative on contacts, research states speakers work in AC current, so if only one speaker is fitted, it does not matter how you contact positive & negative wires.Now back to the train shop and buy another sugar cube speaker for the Mallard TTS sound decode.Again thankyou for all the comments.Kind regards Tazzi Tiger Australia Link to comment Share on other sites More sharing options...
96RAF Posted February 25, 2018 Share Posted February 25, 2018 You only need to match phase on speakers if more than one is connected together else you have one pushing as the other is pulling the sound.In fact most speakers are marked + and -.Rob Link to comment Share on other sites More sharing options...
2e0dtoeric Posted February 25, 2018 Share Posted February 25, 2018 Regrettably, my son falls into the brainless category. He's got a 'Masters' in some computery stuff, but a mechanical device defeats him.I found him, t'other day, puttng all his considerable weight on the door-handle, and grousing that the lock was jammed, so he couldn't go out.I suggested he tried UNLOCKING it!If his sort take over the world, we'll need help! 😛 Link to comment Share on other sites More sharing options...
Fishmanoz Posted February 25, 2018 Share Posted February 25, 2018 What one needs is a mastery in common sensory Eric. Rob, these days it’s getting more complicated than just plus and minus with sound bars doing phase shifting such that their multiple drivers reinforce in particular directions to give surround sound from a single composite unit. Will be just a tad difficult to do it on OO scale though. Link to comment Share on other sites More sharing options...
dream walker Posted March 10, 2018 Share Posted March 10, 2018 hi if you want a speaker that fits most locos the AB -240 RC WILL DO THE JOB YOU CANFIT THEM INTO BACHMAN JINTY 3F WITH OUT ANY PROBLENS VERY NEAT SLIM DECODER .THE BEST WAY TO GET THE SPEAKER TO GIVE OUT THE BEST SOUND IS MAKE A SOUND CHAMBER OUR PLACE CARD OVER THE SPEAKER AND CUT THE SPEAKER SHAPE OUT AND PLACE ROUND SPEAKER .I FIT THIS SPEAKER IN MOST OF MY LOCOS SUCH HAS THE CLASS 37 THEY ARE VERY SMALL.GO TO COSTAL DCC TO PURCHASE UK LOOK UNDER SPEAKERS ABS-240-RC 8OHM 1WATT MINIATURE SPEAKER WITH PEEK CONE SIZE 25X9MM. Link to comment Share on other sites More sharing options...
Fishmanoz Posted March 10, 2018 Share Posted March 10, 2018 Could you please stop shouting dream walker, you are causing the speaker to distort and I can’t understand a word you are saying? Link to comment Share on other sites More sharing options...
Sandbar Posted March 15, 2018 Share Posted March 15, 2018 I found that some speakers from old mobile phones do a great service fitting into small spaces. Just remove the speaker and then send the phone to the recyclers.AndrewSandbar & Mudcrab Railways Link to comment Share on other sites More sharing options...
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