: >> What kind of decoder do you need to control the smoke function?
: >> scale steam loco.
: >> All the decoders that I have looked at mention nothing about
: >> lights
: >> and motor.
: > The smoke unit would yet another 'function'. Many DCC decoders
: > bunch
: > of 'function' outputs. *Usually* these are used for all sorts of
: > lights, in addition to the head light: marker lights, mars
: > lights, etc. Since a steam loco is not likely to have things
: > lights, marker lights, or mars lights, you should be able to one
: > extra functions to control the smoke unit.
: Those function outputs don't have the current source/drain capacity
: operate a smoke unit - hence my suggestion of using a miniature
: controlled by a function output supplying track current to the
That's exactly what I do with my old American Flyer locos that have
been upgraded to Timko can motors and DCC control. With the reversing
unit removed, there's plenty of space for the decoder and relay.
It could probably also be done in HO, but there hasn't been a decent
HO smoke unit since American Flyer got out of HO. It even 'chuffed'
without any electronics. Imagine that.