Tektronix 4907

This is one of the two 4907 eight-inch floppy disk drive units as part of option 31. The model 4907 refers to a single drive just as large as the dual drive but with the remaining space reserved for the disk controller that communicates to the computer via a GPIB connection. Unfortunately I do not have the main single disk drive with the controller so my dual drive is a massive paperweight. The numbers on the disk drives (0 and 1) indicates the device number that would be used for selection on the computer.