I have not but here are some links to look at. I know the motors in older brass draw quite a bit of current so you will probably have to change the motors. Check how much the locos draw first off. You will probably have to unsolder the tender to open it.
http://www.dccwiki.com/Royal_Hudson[/url
[url]http://homepage.mac.com/rbowdidge/railroad/dcc.html
The below one, scroll down to the bottom of the page and download the complete tutorial.
http://markschutzer.com/Brass_Clinics/Clinics_page1.htm
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
That sounds good. You should be ok. I use the SoundTraxx Micro-Tsunami since my locos do not draw over 0.5 amp. Think of Litchfield Station for decoders. Free shipping over $50.00. I order from them for all my DCC needs.