@c.sam posted:Is it possible to covert a 3 rail AC system to DCC with sound? Thinking that as our MTH and Lionel locomotive control systems fail, might it be more economical to go that route and perhaps over 5 to 10 years we will have converted our whole roster one by one 'as needed'?
Keep in mind that DCC and AC track operation are totally incompatible. If you're running DCC, none of your AC locomotives can be on the tracks, ditto for DCC locomotives during AC operation.