Plug In Decoder For Athearn CF7?
#4
If it's anything like most of the Athearn "DCC Ready" chassis I've seen lately, it will have a 9-pin plug wired to the circuit board. A good, inexpensive non-sound decoder for this unit would be a Digitrax DH123... and it will plug directly into the 9-pin plug in the loco. Simply pull the harness/plug out of the decoder and plug the decoder into the harness in the loco.

For sound, if you wanted prototypical sound, a Soundtraxx Tsunami will plug into the board as well, and mount a speaker as Gary suggested.

For about half the price, the Digitrax SDH164D isn't bad... has generic diesel sound and decent motor control.
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