Tandy 1000  (25-1000)  Install Additional Floppy Drive  Faxback Doc. # 1045

In order to install the 25-1075 3-1/2 floppy drive the following will 
be required:

25-1075, 3.5" 720K Floppy Disk Drive:

         Before installing the 3.5" drive it must be configured      
         electrically as the correct drive you want it to be (Drive A
         or Drive B). See the documentation that's included with the 
         drive for instructions on how to do this.

25-1076, 3.5"to 5.25" Disk Drive Adapter:

         As documented, this adapter had two connectors for the disk 
         drive cable to plug in. Be sure to use the left connector for
         the Tandy 1000 or 1000A.

W-0124 Disk Drive Cable (from National Parts):

         A longer disk drive cable.                                  

25-1170, MS-DOS 3.20.22 upgrade:
 
         The command "DRIVPARM=/D:x" must be added to a CONFIG.SYS file      
         (x specifies the logical drive number of the 3.5" drive, Drive 
         A=O, Drive B=1, and so on). Refer to the MS-DOS reference manual 
         for more information on how to do this.

MXP-0081, BIOS Upgrade from 1.00.00 to 1.01.00 (from National Parts).