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Click on any of the images below to begin the slideshow. You can pause it at any time using the PAUSE SLIDESHOW button at the bottom left of the picture. You can close the slideshow by using the CLOSE button at the bottom right of the picture.

 image of Front view.  Note power connections on right in red & black.  image of Rear view of OSI 300.  image of Closeup of DATA switches; bottom left corner.  image of Another closeup of DATA switches from the bottom edge.  image of Closeup of the 7 ADDRESS switches -- bottom right corner.  image of Closeup of RUN, RESET & LOAD switches.  image of Closeup of ceramic capacitor w/ DATA switches in background.