[Coco] Early disk drive cabling

[Arthur Flexser]

Yes, pulled pins on the cable handled the drive selection on those early
CoCo disk systems.

Art


On Sun, Aug 24, 2014 at 3:26 PM, Mark J. Blair <nf6x at nf6x.net> wrote:

> I'm putting together an early silver CoCo system in an original-like
> configuration. I just received one of the early 26-3022 drives, in a silver
> case, made by TEC, with the big lever at the lower right corner to release
> the drive door. I also have a 26-3022 controller on the way, purchased
> separately.
>
> I'll need to fabricate a ribbon cable. While I had the drive open to clean
> the head, I didn't find any drive ID jumpers. Did the early 26-3022 drive
> systems have contacts pulled from the individual edge connectors on the
> ribbon cable in order to manage drive IDs, as was done on some other TRS-80
> internal cabling? Did the basic single-drive system originally include a
> cable with edge connectors for additional drives, or did the cable need to
> be replaced when adding drives?
>
> --
> Mark J. Blair, NF6X <nf6x at nf6x.net>
> http://www.nf6x.net/
>
>
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