Chuck Guzis cclist at
Wed Aug 25 16:37:12 CDT 2021

On 8/25/21 1:57 PM, Fred Cisin via cctalk wrote:

> For 100tpi, there also existed Tandon TM100-4M drives.  The M stood for
> "Micropolis".   One of the TM100-4M drives that I had did not have the
> 'M' on the label.

The early Micropolis 48 tpi drives (1015 Mod I) were spec-ed at 35 tracks.

The 100 TPI models (mod II) were 77 tracks.

Later drives included both 100 TPI and 96 TPI (e.g. 1115-5 and -6).  For
a 5.25" drive, a beast of one.  No wonder they quit making floppy drives.

Tandon was pretty sloppy with their labeling.  I've got a TM-100-4M
that's identified as such on the body label, but the door latch handle
has a "96 tpi" sticker.  Whatthehell, a bezel's a bezel, right?


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