Isn't this the buffered expansion cable?
2017-04-12 12:31 GMT-03:00 Tony Duell via cctalk <cctalk@classiccmp.org>: > On Wed, Apr 12, 2017 at 3:51 PM, Bill Gunshannon via cctalk > <cctalk@classiccmp.org> wrote: > > > > So, I just picked up an MISE from Bartlett Labs (cause I really liked > > the M3SE I had) and decided to revive one of my TRS-80 MOdel I's. > > In my box of "stuff" I found an interesting ribbon cable the function > > of which I don't know. It is a 40 pin to 50 pin ribbon cable with a > > black box connecting them that is labeled TANDY. I know of nothing > > the Tandy made that used a 50 pin connector other than a hard disk. > > Could that be what this is for? Anybody ever seen one? I no longer > > have any Tandy External HD's but then, with things like MISE and FreHD > > why would one still want one other than for nostalgia. > > > > bill > > Although I never had one, I beleive Tandy made an adapter that plugged > into the Model 1 expansion bus (40 pin) and gave you a (cut down?) > Model 3 expansion bus (50 pin). As you suggest it was commonly used > to connect Model 3 hard disks to the Model 1, but I think it worked with > some other devices too. > > -tony >