Installing DH123 decoder in old loco help!!!

[Kutter]

Hi everyone,  I have an old steam loco and would like info on how I could install a DH123 decoder in it.  I have all kinds of room in the tender for the decoder, but I am not sure about how to isolate the motor.  If anyone can help that would be great.  I'd like to run my loco at a train show next month.  Thanks for any help guys.

[Kutter]

To be totally honest I don't know.  It is cast. It's also a 0-6-0.  It was my grandfarther's.  HO scale.  I don't know what else I can tell you.  Sorry I hope this is good enough to help.

[betamax]

I installed a DH123 into a brass locomotive a couple of weeks ago. Not too difficult. I had enough room to tuck the decoder into the boiler.

I documented the process here:
http://www.dccwiki.com/Royal_Hudson

(Yes, it will need to be re-motored at some time in the future.)

It would be important to check the stall current before conversion, just to avoid letting the expensive magic smoke out of the decoder.