Electronics and DCC

I have a Grandson who is Autistic and loves the Thomas the Train series.  I have recently switched to DCC and would like to convert my Thomas engines to DCC.  Any suggestions as to the best decoder to buy for a Bachmann conversion?  I understand the decoders are almost universal.  Most come with a pin assembly but Bachmann does not have socket installed in thier units.  That requires cut, splice and soulder.  Any idea where someone could find step by step instructions for a Bachmann conversion to DCC?  Many thanks for your reply. dpffitz

 http://www.tcsdcc.com/Customer_Content/Installation_Pictures/HO_Scale/Bachmann/Thomas/Thomas.htm

http://www.tcsdcc.com/Customer_Content/Installation_Pictures/HO_Scale/Bachmann/James/james.htm

It is a hard-wire install, but it looks like simply hooking up similar wire colors together.

My granddaughter's Thomas has a TCS M-1 in it.  Added head and tail lights during the install.

I installed a Digitrax DZ123 in the cab of my grandson's Thomas (HO scale). Plenty of room for this decoder. Just remember to eliminate the little board with the resistors/capacitors on it. They will screw up the DCC signal.

There is room for a larger decoder if you wish. A DH123 will fit as would any similar decoder. All are hard wired types. I don't think there is a 'drop in' decoder available for the Thomas series locos.

Good luck with your project. Our Thomas runs like a watch with his decoder.

http://www.trainbuddy.com/Reference/Decoding%20Engines/thomas.htm

This may give you a better idea of a step-by-step.  I placed a M1 in my nephews and it runs great.  I will need to open it back up to add a little more weight though...