Home Page › Forums › Modeling the Missouri Pacific, Texas & Pacific, etc › HO Scale › Building a Mopac GP-12 1065 (ex M-I RS-3) › Reply To: Building a Mopac GP-12 1065 (ex M-I RS-3)
Final post; to quote Gene Wilder in ‘Young Frankenstein’ “Its alive”……
Added the Soundtraxx decoder (part number) 885024 yesterday with a sugar cube speaker and the sound is amazing. The original bulbs were replaced with LEDs. One could reuse the Bachmann speaker but I was told the sugar cube speaker would sound better and I put it in the cab.
Hope you enjoyed following this transformation from a RS-3 to a GP-12. Looking back the three modeling challenges on this model were 1) replacing the Alco fan with the two 36″ EMD ones, 2) building the exhaust unit and 3) rebuilding the model’s fuel tank and modifying the metal under the fuel tank to accept the new one. Looking at the Athearn RS-3 it already has the GP-12 type fuel tank so that would eliminate the last step, has the correct headlights and separate hand grabs on the ends. One could convert the Athearn carbody and eliminate those steps but I’ve also learned the Athearn shell is a tight fit for the 885024 decoder and the shell has some accuracy issues.
Here’s a thread on the various HO shells with two responses for the Bachmann the most accurate.
http://dieseldetailer.proboards.com/thread/11549/question-on-best-rs-availble
Any questions let me know.
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