Circuit board for a simple DCC Keep-Alive.  This is a project for the Pacific Coast Region of the NMRA.  Board is a panel, 10 up.  User is responsible for components and assembly.  Based on a circuit published by Larry Puckett.  https://www.dccguy.com/?tag=keep-alive.  See the PCR Coast Division Meet Up clinic of August 22, 2020. 

Size of assembled Keep-Alive is 1.65" long x .710 inches wide and .4" thick.  Fits within an EMD diesel shell.

Assembly information and CAD files can be found at https://github.com/SethNeumann/PCR-Keep-Alive