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LCRU Question in Lionel Yellow Belly Hudson

First off, I'm running in command.

I'm trying to get a little more smoke out of my Lionel 6-18043  circa about 1995.

The smoke unit is simple with no wicking and just that "sleeve" over the resistor.  I removed the sleeve and am going to try a lower resistor than the 30 ohm that is presently in it.  I'll also put a little wicking in and see how that goes.

It has an LCRU 0412 (C) 95 Liontech board.

What does the board do with respect to controlling the smoke unit?  One end of the resistor goes to the board.  Is this just on/off via Cab keys 8 and 9 or does it also control voltage?  Any harm in going lower with a suitable resistor?

I 've also noticed that when the engine is not moving the smoke unit shuts off.  How is this accomplished?

Thanks for the help Gents....much appreciated.





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