[net.micro.ti] Wanted: TI 99/4a Exp. Bus Pinout

heuring@uiucdcsb.UUCP (11/09/84)

  With the price of disk drives as low as it is I am contemplating
adding a disk drive on my fathers TI 99/4a.  Does anyone have the
pin definitions for the expansion bus coming out of this machine?
Has anyone added a disk drive? Any suggestions?

Thanks
Jerry Heuring
heuring@uiucdcs