... you posted a picture of your 3mm Dukedog, heres my Bulldog built in 2010 in 00 in a somewhat embryonic state. Surprisingly sure footed for a 4-4 -0 because of the full compensation and well distributed weight. I'll post a more complete picture when I can find it. The white rectangle in the smoke box incidentally is the speaker and in fact at one stage I had all the electronics in the loco itself. I can't remember now but I've a feeling that I've since moved the decoder to the tender. 2787_031554_070000000.jpg Kind regards Andrew Last edited on 3 Nov 2019 21:05 by Andrew Duncan posted: 3 Nov 2019 21:09 from: Matt M. Hi Andrew, I remember an old 'Model Railroader' article about making your own electro magnets to overcome this problem. It was back in the late 70's. Don't ask me which issue as I don't have any from that vintage on my shelves. I think they were winding coils around nails. Matt M. posted: 3 Nov 2019 22:19 from: Andrew Duncan ...