|part#||85-key ISO SSK converted from 84-key SSK (1986)|
|date||approx 1986 (34 years old), no rear label|
|IBM logo||black text on white logo|
|cable||IBM SDL to ps/2 cable included (standard length) NEW
|key caps||removable (one part key stem + key cap)|
|key switches||clicky = buckling spring|
|condition||Very nice specimen of IBM original model M space saving keyboard in 84-key format (no number pad). Includes original SSK keys with front-side printing to show numpad functionality (7-8-9 = Home, Cursor up, Pg Up; U-I-O = cursor left, cursor right); J-K-L = End, Cursor Down, PgDn) and NumLk – Scroll Lk key. Includes IBM 7/32 blue screws most typically found in 1986 and 1987 model M keyboards and original 1391472 extendable feet (which differ from 1391401) feet.
|comments||Keyboard pre-selected as good candidate and passed initial testing to confirm mechanical condition. Upper keyboard case disassembled and individual 101 keys have been removed and fully cleaned by hand. Inspection of interior plate. All plastic rivets drilled out and replaced with M2 precision screws (full bolt/screw mod) to restore internal integrity (see last photos in description below). Interior plate vacuumed to remove foreign debris. Keyboard re-assembled and re-tested post-cleaning. Individual photography of external and internal parts of the keyboard (see actual photos below).|
|comments||Similar to the classic 1391401 or 42H1292 buckling spring keyboards, but this keyboard only has 84 keys and does not have numeric keypad. You can still switch to numeric keypad mode by using the key combination of “SHIFT” + “NUM LK/SCR LK” keys (between print screen and pause keys.)
Keyboard was fully taken apart and deep cleaned. Additional spring was added to 85th key position and replacement of enter key, | \ key, <> key. Keyboard has signs of previous battle damage over the past 30+ years, (our guess is that previous owner was an electronics engineer or technician and left their hi-temp soldering iron on the keyboard case a little too long). End buyer could try to go to the hobby store and find some matching off-white/beige paint.