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View Full Version : Working Tandy Portable Disk Drive!!


chuckcmagee
October 25th, 2006, 07:22 PM
Wow, what a great adventure! My non-functional TPDD arrived by UPS today (actually 2 M100 and 2 TPDD). I dug around in my junk box and found a 10 pin header to RS232C cable for one of my OLD motherboards. I went to the Web8201 website and got the specs for the cable. After a total rewire, I could talk to the drive! No workee tho. Tear it apart and yep, just as all of us know by now, rubber drive belt had turned into gummy mess. I got extremely lucky and found a rubber band that was the perfect size. Tear it apart some more and put the new "belt" on. Put it back together a few times and it finally works. Took a 3.5 floppy, told it to format, and click, click, click. Yipeeeee, 100,000 glorious bytes of storage.

It is suppose to be a 8 pin header so I had to make the connection hole just a TAD bigger. Drive was in really bad shape already so I am not gonna sweat having a nonstandard hole in the back. Very grungy but working.

The Web8201 website talks about putting "pull up resistors" in the cable, I didn't bother and still works fine.
In M100 and PC-8201 land, you adapt to having 20K available to work with
so 100K is like "hog heaven".