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DCC Sound
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 Posted: Tue Oct 4th, 2011 11:18 am
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MrNatural
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I posted this over on Technical, but maybe it wasn't technical enough (or too technical?) so I will give it a try here.

I have a pretty common loco (shown below) to anyone modelling in On30. It came with DCC but not sound, obviously. As a complete DCC novice can you tell me, to add sound to this do I replace the present decoder with a full service one, or can sound simply be added (emphasis on simply)?

Thanks guys!




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 Posted: Tue Oct 4th, 2011 01:51 pm
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Herb Kephart
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I can't answer about the electronics--other than that they take up space--which that little gas-mechanical does not have much of. I can't think of anywhere that a speaker might be put, besides in the cab--if you want to dirty up the windows enough so it can't be seen. I have thought about RCing one, but it would appear that the motor would have to be replaced with something much smaller and the gear ratio increased to compensate, to make room for the battery--like the speaker, a relatively large lump.

Not a lot of help, I know.


Herb 



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 Posted: Thu Oct 6th, 2011 09:01 pm
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man7sell
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They do make pretty small speakers that could be mounted inside the cab on the left side. I have sound in an N scale steamer and it is load. There's not much room in there I can tell ya. If you make a styrene box around the speaker and dress it up like a tool box who would notice ;). As for the electronics part, I have the same gas mechanical and it's just DCC so the only way to add sound is to replace the borad with a sound board.



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 Posted: Fri Oct 7th, 2011 01:14 am
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W C Greene
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Herb-if you can live with a constant (slow) speed, you can indeed install a tiny r/c car receiver (see my critter loco) and a Losi or Dynamite 2 cell 180 MAH li poly and have a great running little job. Of course, if you put a crew and stuff in the cab, they will hide any 'lektronics. Sound? Cake? Eat?...
Woodie



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 Posted: Fri Oct 7th, 2011 04:57 pm
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Herb Kephart
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Woodie--

Back when I was considering this, I wasn't thinking of a battery as small as 180 Mah, although I did get a toy car setup. Will have to look farther into the battery situation.

Herb 



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 Posted: Fri Oct 7th, 2011 05:19 pm
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W C Greene
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Herb-I am getting about 4 hours run time in my Porters and critter/loco from the 180MAH. The Porters have proportional boards.
troublemaker

NOW-BACK TO DCC SOUND...



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 Posted: Sat Oct 8th, 2011 02:37 pm
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mabloodhound
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You can replace the present decoder with a "full service" decoder, which is the most desirable method.   Then you need to add a speaker.   I suggest you try the "new" exciter that Bachmann is using in the newly released Porters.
Exciters are available here: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-379
and elsewhere.   I have no financial interest, just passing this on.
Recent comments about the sound in the new Porters are excellent.   And they can be mounted on any flat surface, ie: sidewall or roof.



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 Posted: Sat Oct 8th, 2011 05:02 pm
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MrNatural
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Thanks so much for the great reply, and for pulling the thread back on subject. I am following up on your recommendation. Taking a good hard look at the Exciters.

Thanks again...

mabloodhound wrote: You can replace the present decoder with a "full service" decoder, which is the most desirable method.   Then you need to add a speaker.   I suggest you try the "new" exciter that Bachmann is using in the newly released Porters...



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 Posted: Wed Nov 30th, 2011 12:56 am
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moc13
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I have done a few of these locos. You need to pull the decoder and replace it with a sound decoder and speaker. I use soundtraxx. Go to their web site and look up the Spetum locos, and they will sujest the proper one to use.

For that engine I used the Tsunami TSU-750 for light logging. You will also need a 8 pin plug. You do not have to change board, just the decoder. I hope this helps.

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 Posted: Wed Nov 30th, 2011 03:06 am
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Stanton
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A 1 watt speaker at 12 volts translates to 1/12 amps (83 mA). A Tsunami decoder sucks quite a lot of power, even when sound is muted (turned off). I'm estimating 30 to 50 mA.



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