deskthority

>> Update: Hi-Tek keycap peg measurements: inner box .1915", outer box .2740

problem is, these keystems are spec'ed DC 61-01 your catalog,
at .275" square. Actually measured they are slightly tapered at
.266" square on top and .276" on bottom.

So I don't know if a proper keycap "peg hole ...

jsheradin, thanks for the quick ID and references to the telcontar.net page for details, and of course the local deskthority reference. I looked on site "here" for square keystems, but Datanetics wasn't listed there. My friend the owner is really pleased to ID these.

Regards Herb

Looks like the place/thread to ask, to identify the following keyswitch, and to ask where I might get keycaps.
Another tech friend has a few hundred of them, no data or source, unused old stock. In summary,

Switch is momentary, 2-pin .1/4" spaced pins,
Black body 9/16 inch square, about 11/16 ...

Thanks and compliments to "snuci" for updating the Wiki M0110A Web page. I likewise found the Apple Tech Note as now referenced. The likely definitive references, are in the "Inside Apple" series which describe the hardware interfaces by product. As time permits I may edit those into the page. But ...

Pardon me, if this forum is not the correct forum for possible errors in a wiki entry. I'm new to participating.

The page "Apple M0110A" has this statement:

The protocol is an extended version of the one for the M0110, but the leads on the wire are not crossed, so a standard telephone cord can be ...