🚀 go-pugleaf

"Greg Andrzejewski" <pressyourluck85@yahoo.com> wrote in message
news:QtadnQKo5NuPRJ_cRVn-uw@comcast.com...
<snip>
> Okay, I've got everything opened up, but something just doesn't seem
right.
> The Tandy disk drive enclosure has on spare card-edge connector. I cannot
> just plug this into my 3.5" drive with the card-edge to pin header adapter
> that came with my mounting supplies, can I? Then what do I do? Can I cross
> wires 10 and 12 on the tandy cable? Do I have to hook up the modified PC
> floppy cable to the card-edge connector on the tandy cable? Do I have to
> replace the cable in the enclosure altogether? Please help. I'm sorry if
> this is a little confisuing. Step-by-step instructions would help greatly.
>
> Thank you,
> Greg

There are lots of specific ways of doing it that all work.  Keep in mind
that you want to keep it simple.

First look at your 3.5" drive and see if you have access to DS (may be
labeled DS0, DS1, etc or DS1, DS2, etc.).  If you do then just change the DS
to what you want.  Sometimes DS is a jumper sometimes it is a bridge.  A
bridge is just a copper trace that can either be cut or have a drop of
solder put on to "bridge" the connection.


Flipping pins 10 through 12 on the cable is another way.

The flipping can be done with the existing COCO cable or a "PC" cable.

If you use the existing COCO cable you need the card edge to header adaptor.

If all you have is an "AT" cable you can get a card edge conmnector at Radio
Shack and replace the controller end of the cable.

If you replace a connector with a different type of connector (header to
card edge or card edge to header) do not try to put it in the same holes.


Do not try and stick to one method.  All you are trying to do is either
change the drives DS or change the pinout of pins 10 & 12.

If you have a card edge to header adaptor that is on a small PC board (vs a
molded plastic adaptor) you can cut the traces going to pins 10 & 12 and
cross them over with a couple of pieces of wire wrap wire.



The whole point of giving you these three methods is to let you realize that
it is easy and there are multiple methods available.

If you use the cable method just end up with this:

Controller to drive 1 is straight, then continuing to drive 0 should have
pins 10 & 12 swapped.

These techniques apply to all antique computers.


If you still have trouble email me at randy482 at hotmail dot com and I'll
see about sending you a cable.


Randy