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Showing posts from April, 2018

Tandy Portable Disk Drive 2

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So following along from getting my REX installed and playing with it, the next addition for my little M100 kit was a Tandy Portable Disk Drive 2: As the name suggests, its a portable 3.5" disk drive that goes with the Model 100, can run on AA batteries or 6V DC and reminds me very much of a top loading VCR we owned a long time ago. The drive itself appeared in fantastic cosmetic condition when it arrived - however it did not come with the serial cable to connect it to the M100 nor any disks.  I didn't think the missing cable would be a huge deal - but as it turns out I should have asked the question before purchasing the drive.  The cable is not just a straight serial cable, and has to adjust some of the voltage levels between the M100 and the drive to get things to work.  I started looking online at the documentation people have produced around making your own cable.  It was at this point someone very kindly offered me a spare cable that they had excess to...