9 Jun
1997
9 Jun
'97
3:03 p.m.
If it's
the same as the XT external floppy connector (and I think it is!),
the 34 wires of the standard floppy connector are connected to the
'bottom' (higher numbered) pins on the 37 pin D plug. Pins 1,2,20 are no
connection, pin 3 is wire 2, pin 4 is wire 4, pin 5 is wire 6, etc. Pins
21-37 are all grounded.
It's a standard DC37 connector, available from any good electronics parts
place, I think. You can get solder, PCB mount or IDC versions.
Excellent! Thanks for the info! As I said earlier, I have a use for this
drive, but I don't really want to modify it. Hopefully I'll be able to
feed a ribbon cable with the 37-pin D connector on it out of my Amiga's
Sidecar.
I hope there wouldn't be problems with noise, etc, over lengthy cabling?
Well, at one time floppy cables were properly terminated (a 150 Ohm
resistor pack in the drive furthest from the controller), and could be
quite long. Alas, termination was considered too hard for the average
user, so modern drives have 1k pull-ups (they are in no sense
terminators), and nothing else. They may therefore fail to work on long
cables.
If you are feeling hackish, you might try adding some 150 Ohm termination
resistors to the last drive on the cable (or replacing the 1k ones, which
may well be microscopic SMD ones, alas) and seeing if that helps.
Heh. I couldn't even get mine apart, because of
the two six-pointed
screws on the bottom. The screws have a lump in the middle so I can't use
a flat-blade screwdriver as I did when I had a similar problem opening my
Mac 512K.
Tamperproof TORX screws. Drivers for them are available from good tool
shops in the UK - I have a reasonably complete set to deal with such
things...