Hayes Micromodem II / microcoupler (was: Re: Is this a IBM RT mouse?)

From: Tothwolf <tothwolf_at_concentric.net>
Date: Mon Jan 28 22:21:44 2002

On Mon, 28 Jan 2002, John Chris Wren wrote:
> On Mon, 28 Jan 2002, Tothwolf wrote:
>
> > Speaking of cloning old hardware...Is anyone still looking to duplicate
> > the Hayes Micromodem II "microcoupler" units (the external part)? I've got
> > one I accidentally dropped and broke the cover on, and have considered
> > going ahead and scanning the board and drawing up a schematic. Would there
> > be any interest in it? If there is enough interest to justify the time
> > required, I might even be willing to cad up the design of the case and pc
> > board so that a very close replica could be produced.
>
> Working for Hayes, and knowing a little about the MM-II, what you've
> stated is correct. I have a friend who is a pack-rat, and *may* just
> have the original schematics somewhere. Let me ping him and see what
> that will generated. Incidently, the guy who designed the SM-300 and
> the SB-103 is an acquaintence of mine.

Wow, Thanks. The original schematics would be very useful. The MM-II board
that goes into the Apple II has over one third of the board potted in an
orange epoxy substance. I don't think I could ever work up the nerve to
dissect one of these units :)

> Somewhere around here, I also have the schematics for the Chronograph.
> I've got 15 :-), 4 of which work, 11 of which are untested.

A very interesting bit of hardware. I've never had a chance to see one in
person, only pictures of old units. I never could figure out why Hayes
designed and sold these units. Did they have a precision clock?

-Toth
Received on Mon Jan 28 2002 - 22:21:44 GMT