Overhead photo of a Tandon TM100-1 Floppy Drive and a 5,25" Floppy

How To Revive A Tandon Floppy Drive

In this episode of [Adrian’s Digital Basement], we dive into the world of retro computing with a focus on diagnosing and repairing an old full-height 5.25-inch floppy drive from an IBM 5150 system. Although mechanically sound, the drive had trouble reading disks, and Adrian quickly set out to fix the issue. Using a Greaseweazle—a versatile open-source tool for floppy disk diagnostics—he tests the drive’s components and explores whether the fault lies with the read/write head or electronic systems.

The repair process provides fascinating insights into the Tandon TM100-1 floppy drive, a key player in vintage computing. Adrian explains how the drive was designed as a single-sided unit, yet hints at potential double-sided capability due to its circuit board, raising possibilities for future tweaks. Throughout the video, Adrian shares handy tips on ensuring proper mechanical maintenance, such as keeping lubrication in check and ensuring correct spring tension. His attention to detail, especially on termination resistors, provided vital knowledge for anyone looking to understand or restore these old drives.

For fans of retro tech, this episode is a must-watch! Adrian makes complex repairs accessible, sharing both technical know-how and nostalgic appreciation. For those interested in similar hacks, past projects like the Greaseweazle tool itself or other Amiga system repairs are worth exploring. To see Adrian in action and catch all the repair details, check out the full video.

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A beige computer with a CRT monitor. A black LCD sits atop a stack of 3 devices next to it and a set of power control switches (the orange light up kind). There appear to be 8 floppy drives available.

Flux Is Your Friend For Archiving Old Floppy Disks

Nothing screams retrocomputing quite like floppy drives. If you want to preserve some of your favorite computing memories like that paper you wrote about the joys of the Information Superhighway, [Shelby] from Tech Tangents has a detailed dive into how to preserve the bits off those old floppies.

Back in the day, the best way to get data off an old drive was to fire up an old computer. Now, with new devices specifically designed for harvesting data off of old floppies like the KryoFlux and the Greaseweazle, you can get the full flux map of the disk. With this, you can build binary image files and actually pull files and duplicate disks from vintage systems.

Some systems, like PCs, Macs, and Commodores are well-understood and are simple to preserve, while others take quite a bit of work to figure out. [Shelby] walks us through some of the more common disk formats as well as some real oddballs like Microsoft Adventure which features inconsistent formatting as a form of early DRM (boo).

Want to do your own preservation? We’ve covered a couple different methods in the past.

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