How hard would an Atlas GP-7 (model number 48237) DCC conversion be. Please keep in mind, this would be one of my first DCC projects. I looked at the following site: http://www.raybob.boche.net/ but that was for a GP7TT, I dont know if they use the same mech or not. Thanks, Brad
It isn't dificult to place a decoder in an Atlas GP-7. Just modify the frame by cutting a space for the decoder on top and provide channels for the wiring to the motor brushes, frame and lighting. Use the link below to guide you: http://www.aztectrains.com/media/DCC3010.pdf Stay cool and run steam.....
http://www.trainboard.com/grapevine/showthread.php?t=63267 I discussed this topic just a month or so ago when I was about to begin conversion of mine. There's a pic in there someone took, my installation is similar but I kept both light boards by filing the LED down some on the one I put the decoder under. That freed up a bit more room as well as notching the frame. Hope this helps.
Thanks i did a search and did not get a result. looks like I am going to try it, as soon as I' am done Atlas will release the WPs in DCC ready!! Brad
Sorry for the bump I realize this thread is quite old, but after searching it seems to be the most relevant one. Does anyone know if it is possible to fit a sound decoder in one of these older Atlas Geeps? Thanks in advance, Brian
Which Geep are you looking to convert? You might take a look at the TCS CN or CN-GP decoder. It's made on a split board and, in many (but not all) cases is supposed to fit Atlas Geeps, I believe without having to mill the frame. CN Series They have a decoder selector with photos to compare your loco frame with right here: Classic N Decoder Series Selection
MRC has a sound decoder for the newer Atlas diesels. You could probably modify the frame to get this decoder to fit. TCS has decoders to fit the older Atlas GP-7's. I converted several of my older GP-7/9's using the TCS decoders. have fun..
Thanks for the replies, I'll check the suggestions. SteamDonkey, Powersteamguy guessed correctly that I was referring to an early Atlas GP-7. Actually, I just realized that a better question might be would my older WP GP-7 body fit on the newer DCC friendly Atlas mechanism? Thanks again!
