Hi Chris (lehighline):
Sorry for the tardy reply, but "life" just got in the way the past couple of days.
Here are the photos you asked for......it looks to me that I also have the pi..y little circuit board.
The end of the original box with loco description and bar code
The back of the original box with all of the instructions on how to get the body off and back on the chassis, and the use/location of the "on-off switch" for the different types of operation.
View of the chassis with the body removed...note I have removed the knuckle coupler from the rear of the chassis and replaced it with a "drop-link hook" coupling to mate with my Buco wagons.
Better shot of the circuit board and motors. I think I have the weak circuit board??
Hope this is enough to determine which circuit board I have in my BEEP.
Peter......Buco Australia