At 15:00 -0500 12/19/2004, Compact Macs wrote:
Date: Sun, 19 Dec 2004 08:30:27 -0800
From: Clark Martin <[EMAIL PROTECTED]>
Subject: Re: Keyboard options for Mac Plus?

At 11:09 PM -0800 12/18/04, Nat wrote:
This has probably come up before, so I apologize in advance for rehashing an
undoubtedly old subject.

I was wondering if it's possible to connect a keyboard other than the Plus
keyboard to the Macintosh Plus.  Specifically, I would like to use an ADB
keyboard.  Does an adapter for such a purpose exist or would I be on my own
to create one?  Or is it simply impossible?

If not an ADB keyboard, how about keyboards from other computer systems?
Like an older PC/AT style keyboard?


There were adapters made for both ADB to Mac Plus and IBM pc to Mac Plus. But they were rare back when the Plus was new. I think you'd be incredibly luck to find one now.

Are the specifications for the Plus keyboard protocol and the ADB bus protocol still available somewhere? With the inexpensive PALs available today, I would guess that there's a better than even chance one could whip up an adapter on the cheap, if one knew what signal conversions are needed. Getting the required information always seems to be a bear. I'm occasionally tempted to bid on some of the sets of Apple Developer CDROMs that show up on Ebay in hopes that they'll contain that kind of information.


Jeff Walther

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