PCI floppy controller

[Chuck Guzis]

On 5/5/22 17:44, Charles Dickman wrote:
> On Thu, Apr 21, 2022 at 10:34 PM Chuck Guzis <cclist at sydex.com
> <mailto:cclist at sydex.com>> wrote:
> 
>     On 4/21/22 18:01, Charles Dickman wrote:
>     > On Thu, Apr 21, 2022 at 8:02 PM Chuck Guzis via cctal
>     > I was at that point and looking at DP3T switches to have an external
>     > connection as well. DP3T switches are mess.
> 
>     You could also bring the floppy cable out to a standard DC-37 connector
>     on a bracket, then use a ABCD switchbox to select whatever external
>     DC-37-cabled floppy drive you wanted.
> 
> 
> Where would you see those DC37 connectors for external floppies? I
> remember them, but not exactly where. 
> 
> I ended up getting a DPDT switch from the hardware store. A bit of
> ribbon cable, some hot glue and a couple pop-rivets and it works like a

Back in the bad old days, DC37F was the common way to bring out external
floppies on the ISA and MC bus.   Consider, for example, the original
5150 and 5160 4-floppy controller--there's that DC37 on the bracket.

All of the standard IBM external PS/2 floppy boxes used DC37-terminated
cables.  e.g. IBM 4869 among others.

Similarly, third party controllers such as the Micro Solutions
CompatiCard line and others all used DC37 connectors on the bracket.

I even have brackets with a DC37 attached to a smaller PCB with the
usual 34-pin header.

For a motion-picture example, see https://youtu.be/ATUFjPldvcg

--Chuck