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Similar look to the disc caps are sometimes polyfuses. (thermal, self resetting fuse/breaker, fast acting. raised wire lump is usually pronounced on them.

Similar look to the cans are thermal cut offs, like a fuseable link on your car. Mostly used in coffee pots and their warmers in case they overheat. a temp is often stamped on those. 

Well, there ain't a PTC across the motor leads, that's for sure.  Also, the "cans" aren't likely to be thermal cutoffs, I've never seen one of those on a model train motor.  The only place you see something like that is in some smoke units.

The position of the caps and the likely chokes is proper for a EMI filter, and I'd bet dollars to donuts that's what they are.

 

And to answer the question:  WHY?........This locomotive was equipped with a remote control system called Loco-Matic.  It was designed by and still available from Dallee Electronics.  It runs on a base frequency of 200kHz.  The components keep the motor noise  from getting into the decoder electronics as well as signal loss in the motor and drive components.

Lou N

@Lou N posted:

And to answer the question:  WHY?........This locomotive was equipped with a remote control system called Loco-Matic.  It was designed by and still available from Dallee Electronics.  It runs on a base frequency of 200kHz.  The components keep the motor noise  from getting into the decoder electronics as well as signal loss in the motor and drive components.

Lou N

That's Lou, 

Follow up question... I'm going to remove all of the Atlas/Dallee Electronics and put in a BlueRail command and control board.  The engine will still run on AC track power.  Would you suggest I leave those components wired in or remove them?

vr

Ron

 

Last edited by Ron045
@Ron045 posted:

That's Lou, 

Follow up question... I'm going to remove all of the Atlas/Dallee Electronics and put in a BlueRail command and control board.  The engine will still run on AC track power.  Would you suggest I leave those components wired in or remove them?

vr

Ron

 

I'd remove the old boards.  It's just a large single board in the top of the body shell.

Lou N

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