early 1986 IBM model M (1390120) Made by IBM 12 JUNE 86

Description

 

part#1390120
serial#L3372
date12 JUN 86 (34 years old) *among the earliest PC-compatible IBM model M keyboards
IBM logosilver logo with black text
cableblack removable, coiled SDL to AT cable
key capsremovable (two piece, key stem + key cap)
key switchesclicky = buckling spring
Designed when “real” typing on a quality keyboard was a required skill to use a $4000 IBM personal computer. PC mag link
(pre-dates the then new mouse-click and graphical user interface operating system later to be known as Microsoft Windows 3.1 and 95)
conditionKeyboard 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 56 plastic rivets drilled out and replaced with M2 precision screws to restore internal integrity.  Interior plate vacuumed to remove foreign debris.  Keyboard re-assembled and re-tested post-cleaning. Individual photography of rear label.
commentsVery nice IBM model M keyboard with silver IBM logo.  Has additional stabilizer bars under numeric + and Enter keys in addition to stabilizer under space bar.
commentsThis keyboard is tested to work 100%. The keyboard assembly has been confirmed to be in functional, operational condition.
commentsAll 56 plastic rivets have been expertly replaced with M2 screws for ensure for a tight and crisp keyboard feel.

Includes 4 blue 7/32″ screws primarily found in 1986 model M keyboards.

Additional information

Weight8 lbs
Dimensions24 × 12 × 4 in