Espee Oregon Division Project Pages

Saturday, August 8, 2020

LokSound Decoder Projects



The number of locos in the sound fleet continues to grow.  I am up to seven units with ESU LokSound decoders now. All new sound installs have been getting the 73100 Select Direct Micro with a 9x16 speaker/enclosure. Not sure what Im going to do with the loss of their hardwired short board going to the Next18 connector, but I have been able to get the 73100 board into all my needed six axle conversions... so far (Hello ESU?). With the size of the active fleet making it difficult to put sound in all units, the short term goal has been to at least get one sound unit in each lashup. Typically I run the sound unit as second in consist so the overall sound is coming from the “train” rather than just the lead unit, but really they all Need sound. As a result I have not been taking the time to complete the full SP light packages as on some before, but am planning eventually to finish the fleet in one mass production line someday... The easiest install has been the IM tunnel motors with basically a plug and play install, vs a couple most difficult old school Kato units that I had to do more grinding on the frame halves, to fit the board above/between the motor saddles. Just amazing what a jump in quality these are from my first Dgtrx sound installs, as these all run and sound just great. I was thinking I would have to add more capacitors to keep all these from cutting out when I first started, but I have not had any problems as long as I keep to the normal layout ops cleaning regimen.  I have been wiring the power feeds a bit different in an effort to keep cutout risk down to a minimum.

A 73100 specimen ready for implant into an Atlas SD9

How the above looks after install (power feed routing seen adjacent to speaker)

Results on a Kato SD40’s Guts

 The Kato U33C Grind (similar process on the SD40 also)

The tightest fit due to caps has been on the U33C

One of my old favorites, especially now with its FDL-16 chug


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