Large Scale Central

RDC Sound System

Bob, think Kenworth.

Brandy

Bob;

As I recall, when I wrote the off-highway truck manuals for Mack Trucks (mid-1970s), I had a Cummins Engine catalog which showed applications for their engines. Some RDCs used a special horizontal-mount Cummins six-cylinder engine.

Check the toy stores for a toy semi-tractor with sound. You may be able to add a better speaker to the system and tweak it for your RDC.

Yours,
Dave

have you tried soudtraxx sierra gp7/9 sound? check it out @www.soundtraxx.com, go to their sampls and try them.