The IBM Model M Keyboard, It’s all about the clicky
The other day I lamented about not daring to clean my sooper leet OmniKey/ULTRA keyboard, because I was afraid to mess with it while it’s working perfectly well.
Today I stumbled upon a cache of keyboards, and after spending an hour searching through at least 300 of ‘em I pulled out a stash of the beloved IBM Model M Keyboard, (and no, I’m not about to spill the beans on my souper seekret source, sorry).
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I got 8 of them. Two are in dirty but perfect shape, and one just looks like it’s missing a few keycaps. The others are missing a few keys, but I assume that I can make a few complete ones out of the remaining parts. They are so dirty, that i was thinking of just hosing them off there in the yard, but I suppose I’ll disassemble them first and clean them up by hand, using some Simpleton Green or something. They were $3 each, cleaned up and refurbished they seem to ebay for about $15-45 each, but with all the labor the cleaning will take, I’m not likely to really strike it rich. More than likely I’ll just have myself a lifetime supply of clicky.
Since I’ve got them both right here, comparing the OmniKey/ULTRA and the Model M side by side, I detect a bit more “sprong” sound coming from the Model M, but that’s really not a problem. The clicky is the same or nearly so, the only likely problem will be that I am used to the pipe key over the backslash key that’s located under the enter key on my OmniKey.

Here are the backs of the keyboards. On each of ‘em you have the actual birthday date printed on the back. How cool is that? I have a range from 29APR87 to 24MAR95 (that last one being made by Lexmark under contract for IBM)
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I left a $3 IBM PC (original IBM PC) keyboard back there. I think you need an expensive PIC based keyboard converter to use it on a AT type modern system. I must say, however, that that IBM PC keyboard, other than the nonstandard replacement black keyboard cord, was about in the best shape of the lot of them.
Below are some other links I ought to tie together while I have a chance.
Marco points out a link to Das Keyboard, and says:
The crew at hak5.org in episode #3 teardown and paint a Model M keyboard to have it look like the above Das Keyboard. Some of the campy stuff the crew does is borderline annoying but I have to say that this (and other bits in each episode) is top drawer stuff. Good job Wess! (..and as long as there’s a few model M’s for the museums, pulling off a well planned mod of the Model M certainly isn’t a crime)
There’s always the obligatory Wikipedia link. The Model M keyboard.
http://www.clickykeyboards.com/ seems to have a few for sale, some parts and accessories, and a picture of the key mechanism patent.
Now all I need is a frigging 5.5 millimeter socket for disassembly.
Update: It looks like two of the keyboards that I have picked up seem to be for the IBM 3196 Terminal. It’s a bit deceiving because it has the old style fat AT connector. It’s the ones on the upper -left corner of the grass picture above. Although it looks like you just need to add a AT to PS/2 adapter to get it to work, research on the web tells me it’s not that easy. Ebay seems to have a number of them sitting ready for sale at $20 to (WTF?) $130 each, plus shipping. There hasn’t been any recent sales, however. I’ve added this addendum merely for Google’s sake. The part number for these so called “IBM 122-keyboards” is 1390572. Leave me a comment if you are at all interested. The clicky is great on theses too, and it looks like I could at least salvage the keycaps for the others, so I suppose it’s still money well spent.
Another Update 24-Sep-06:
This looks pretty neat. The EudoraPro Keyboard, “available in black and classic white in both USB and PS/2 for $70.” I don’t know about the reviewer, but I think $70 isn’t too unreasonable. I’d like to try that red dot pointer mouse thingy first before shelling out the cash though.
Related Tags: IBM, IBM Model M Keyboard, Model M, Keyboard, Omnikey, OmniKey/ULTRA, Hak5, Hak5.org, Das Keyboard