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IBM Model M SSK variations
Posted: 15 Feb 2014, 04:02
by sean4star
Can anyone shed some light for me on the differences between the various versions of the SSK models? The only two that I know of with my limited experience are the 1395100 (made by Lexmark?) and the 1391472. Do they all have removable keycaps and cables? Are they all PBT dye-sub caps? Do they all have the extra legends for the tenkey and navigation keys? I tried looking in the wiki but the "variation" section was blank.
Also, how do you access the layer with the tenkey and navigation? I don't see a Fn key...
Posted: 15 Feb 2014, 04:44
by Daemon Raccoon
All Model M keyboards have dyesub caps, but legends and two piece caps vary by production run, intended purpose, and year. As far as I know there are no fixed-cable SSKs.
Shift+ScrLk accesses the NumLock functionality, though I've never quite figured out how the navigation part is accessed.
Posted: 15 Feb 2014, 17:41
by Kurk
The navigation functions are accessed by pressing SHIFT while in numpad mode. I don't know if it's possible to toggle between navigation and numbers like NumLock would do on full size keyboards.
Posted: 16 Feb 2014, 03:05
by Halvar
Mine is a Terminal SSK (1392980). That one has a fixed cable, and only F and J have removable keycaps.
Posted: 13 Mar 2014, 02:50
by E TwentyNine
Is it this one?
http://www.otd.kr/bbs/board.php?bo_table=f8&wr_id=498
I mean is it that exact one, ID 2017513?
I'd be curious as hell as to why IBM would mix two and one piece keycaps on a production keyboard.
Posted: 13 Mar 2014, 03:59
by webwit
Possible because the keycaps with the nubs were not available in one part, or because they put on the bottom parts of the two-part keycaps on the f and j as reference points for the people or machines mounting the keycaps.
Posted: 13 Mar 2014, 11:17
by Halvar
No, this is the sticker on mine:
Posted: 13 Mar 2014, 14:23
by E TwentyNine
Interesting. The keyboard I linked with the same FJ keys has a date of July 88. Seems like a long time to have a characteristic unique to one particular variation of SSK.
I would have figure by 91 they'd simply all be one way or the other (with the nub style key available in either format).