I have some 20 year old Graham Farish locos with 5 pole motors has anybody ever fitted a module into one of these. I am a retired electronics engineer so soldering or wiring is no problem , but will they physically fit in.
I would need to know this before investing in DCC control
If you want a place for some N scale DCC research you might try:
http://groups.yahoo.com/group/ndcc
They have lots of info in the discussions. There are some tiny decoders available. Some modelers have installed decoders in small steam (like the Bachmann 4-4-0) by cutting away the coal or log pile in the tender, installing the decoder, and covering it up.
Have fun!
Charles