IBM 9331-011 8" External Floppy Drive - eBay 183038271095

Fred Cisin cisin at
Thu Feb 1 21:53:18 CST 2018

On Thu, 1 Feb 2018, Chuck Guzis via cctalk wrote:
> IN my case, all of my drives are terminated in DC37M connectors and my
> controllers have DC37F.    Half-height and 3.5" drives are housed in old
> IBM 4569 boxes (we bought 50 of the things back in the day) and the 8"
> and FH 5.25" have their own external boxes with PSU.
> So, no matter what I want to do, it's a matter of plugging something in
> and turning it on.  Need a 100 tpi drive?  Just grab it off the shelf
> and plug it in.
> That extents to not only PC floppy controllers, but things such as
> Catweasels (I fit them with a buffer board ending in a DC37F on a
> bracket) and even my WD-based controllers and my MCU setups.
> It streamlines the process greatly.

The RIGHT way to do it!
I never got around to doing it right.

You probably put everything into boxes with power supplies, and NEVER
"just temporarily" connect a drive sitting loose.  Nor even try to "apply 
gentle pressure" on head positioner to try to read a disk written out of 
alignment (surprisingly, it worked with extra, but not unreasonable 
amount of, retries!)  Yeah, I know, the right way would be to misalign a 
drive, and then re-align it.

IFF you ever decide that you need the FDADAP (TG43), then it could go into 
a tiny inline project box with a DC37M input and DC37F output.

IFF you wanted to use switch boxes, as I did, you would need one DC37M to 
DC37M cable (screwed permanently onto the input of the switchbox).  I had 
expected to have noise or connection problems with the switchboxes, but it 
never happened.    Cheap crap was a lot better in those days!

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