2 Apr
2003
2 Apr
'03
10:06 p.m.
For a cable already made up, IIRC cables like these,
34 pin
with male IDC on one end, and female IDC on the other end
came with floppy controller controlled tape backup drives, to add
a third device ( the tape drive ) to a floppy cable already being
used by both an A: and B: floppy drive.
I've got a dozen of these cables. The problem is that they have a pin pulled
that I think is used in standard DS/DD floppy operation, but not in tape
operation. I tried several anyway and it would not work. Looking carfeully,
most floppy cables use one of the ground pins as a key. I know that if I use
a straight direct cable it works fine. With one of these cables it does not.
I am not using these for the ESDI drives, but for my TRS-80 Model 4. The
internal drives do not work, the metal cage is not deep enough for
"standard" 5.25" floppies, and for cosmetic reasons I want to leave the
old
drives in place. So I need to put two dirves in an external case. However,
Having something like this hard wired in place makes handling difficult. I
tried to use a card edge connector from the bottom of the unit, but it then
doesn't sense the drives. I'll just keep looking and trying differnet
cables. I know Digikey has them, but at $20 each it would be more than I
paid for the model 4.
Thanks,
Kelly