The TCS A6 is a six-function HO-scale "drop-in" DCC mobile decoder with an integrated 1.5V power supply, designed to replace the factory light board in many popular Atlas, Athearn, and Kato diesels. Examples include the Athearn F59PHI and F3; Atlas RS-1, RS-3, RS-11, C424, and GP7; and the Kato GP35.
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Will it fit my locomotive?
The A6X drops into many Atlas, Athearn, and Kato HO diesels (for example Athearn F59PHI/F3; Atlas RS-1/RS-3/RS-11/C424/GP7; Kato GP35). Check the TCS drop-in chart for your exact model.
Does it include sound?
No — the A6X is a motor and function (mobile) decoder, not a sound decoder. For sound, see the TCS WOW series.
A6X or A4X?
Choose the A6 for up to six functions or the integrated 1.5V bulb supply; the A4X covers four-function installs.