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Sound Decoder for On30 Bachmann 0-4-0 Siderod Critter
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 Posted: Wed Jan 4th, 2012 02:27 pm
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on30critter
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I am looking for a sound decoder to use in a Bachmann On30 Siderod Gas Mechanical. Does anyone know what would be a good one to use. Can you just unplug one and plug in the new one and install the speaker?

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 Posted: Wed Jan 4th, 2012 06:32 pm
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W C Greene
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Is your loco a new one with DCC or an older one. It makes a difference with the installation. LOKSOUND seems to be a good small sound/DCC decoder. If you have a new loco, then you should be able to unplug the board and plug in the new board. Of course, then you will need to program the new board to suit. Older locos will need some soldering and rewiring to install DCC/sound. Remember that there is very little room in this loco so you will have to practice "creative cramming" to install the proper gear. Hope this helps.
Woodie



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 Posted: Wed Jan 4th, 2012 08:12 pm
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on30critter
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Thanks. Yes I have some newer ones with DCC installed. I will get a sound decoder and try to squeeeeeeeze it in.

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 Posted: Wed Jan 4th, 2012 09:46 pm
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Lost Creek RR
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I have succesfully fitted a SoundTraxx TSU-750 sound decoder into a On30 Gas Mech and used a Soundtraxx oval speaker fitted vertically behind the radiator Pt # 810112. Unfortunately this decoder does not come with the plug fitted.

Make sure you fit the capacitor and add a heat sink to the decoder, the TSU-750 can get quite hot and shut down the loco, ask me how I know.

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 Posted: Fri Jan 6th, 2012 12:38 am
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W C Greene
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Can you post a photo or two of the installation?

Woodie



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 Posted: Fri Jan 6th, 2012 07:02 am
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Lost Creek RR
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Hi Woody
I took plenty of images of the dress up kit but none of the decoder instalation. I am in the midst of my second Backwoods Miniatues dess up kit. Painting is next and then I will install the decoder.
I will take pics and post.
I did have to put the capacitor in the cab. It hides under a 44 gallon drum.
Rod.

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 Posted: Fri Jan 6th, 2012 08:02 am
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Calvino
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I am all for photos also! I really want to look into a sound system for my trains (pending the EZ-DCC can handle it) but the big problem was space!

What version did you get sound wise? I see they got a whole lot of different versions, all I know is i won't be using the steam or turbine ones :)



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 Posted: Fri Jan 6th, 2012 09:52 am
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Lost Creek RR
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The sound decoder is a Micro-Tsunami by Soundtraxx, Model TSU-750 part number 827010 for a Galloping Goose. I sounds good to me. You will need to drill some holes in the front radiator area to let the sound out. Fortunately the Backwoods Miniatures dress up kit has a radiator protector to cover them if that's the way you choose to go. You can hear it on the Soundtraxx web site.
Rod.

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 Posted: Fri Jan 6th, 2012 09:56 am
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Calvino
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Lost Creek RR wrote:
The sound decoder is a Micro-Tsunami by Soundtraxx, Model TSU-750 part number 827010 for a Galloping Goose. I sounds good to me. You will need to drill some holes in the front radiator area to let the sound out. Fortunately the Backwoods Miniatures dress up kit has a radiator protector to cover them if that's the way you choose to go. You can hear it on the Soundtraxx web site.
Rod.

I heard it on the site and I'm no expert but it sounded good to me! I am not to worried about room in my On30 boxcab but I'm a different loco I can see how space becomes an issue fast! That said nothing makes it more amazing than sound!



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 Posted: Tue Feb 14th, 2012 07:30 am
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Lost Creek RR
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Back in January Woodie asked if I could post some images of the Tsunami sound decoder installation into a On30 Bachmann Gas Mechanical 0-4-0 that was done some time back.

This is a new installation that got started today so sorry for the delay.

Due to space limitations the original DCC board was removed from on top of the motor and the plastic lugs that held it in place were removed. The new sound decoder is hard wired to the motors brush covers, the capacitor wired in (that's a must) along with the speaker.



Here is the displaced factory DCC unit.


The shiny piece below with the arrow is a small piece of Aluminium and is being used as an additional heat sink. It will be secured to the decoders cover to aid cooling.




The capacitor will be fitted to the inside of the cab covered by this Tamiya 44 gallon drum. The notch is to provide for the wires. I just stick the drum down with blue tack so it can be removed if necessary.





There is also a notch filed on the bottom of the cab again to allow the capacitors wires to pass into the cab.




Holes were pre- drilled in the radiator area before fitting the Backwoods Miniatures cover. the speaker fits vertically behind the radiator and in front of the H/light wires. It just sits there loosely with no box. It still sounds good when running on the layout.




Even though a resistor has been fitted (removed from the original board) for the front headlight wire, the light is not working so more to do.

A tweak with decoder pro when finished to adjust the sounds and the job is done.

Trust this helps.

Rod.

Last edited on Mon Feb 20th, 2012 12:21 am by Lost Creek RR

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