On 5/5/22 17:44, Charles Dickman wrote: > On Thu, Apr 21, 2022 at 10:34 PM Chuck Guzis <[email protected] > <mailto:[email protected]>> 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
