1994 Options for IBM model M15 (13H6689) Manufactured by Lexmark 02 NOV 94

SKU: 13H6689 / 13H6713 Category:

Description

part#13H6689 with original IBM box (13H6713)
serial#0000523
date02 NOV 94
IBM logoOPTIONS by IBM in gray text
cableattached cable with ps/2 connector
key switchesclicky = buckling spring
Item is in excellent condition in the original IBM retail box.  Includes brand new model M-15 Options for IBM keyboard, two-part gray wrist rests, ps/2 to AT adapter, original IBM instruction sheet, warranty card and retail packaging.  Box was in sealed condition until recently in order to inspect and photograph items)
commentsItem is ultra-rare Options for IBM model M15 in original IBM box.  To our knowledge, best remaining specimen of this very rare keyboard.

Keyboard appears to be excellent condition and to have been stored in original new IBM cardboard box since 1995.

Includes technical specs on back of keyboard box
Number of Keys: 89
Distance between keys: 19.05mm (.75in)
peak tactile force: 65+/- 10grams (2.3+/- .35oz)
Keyboard slope: 5 degrees, 11 degrees, or 17 to 25 degrees
Keyboard opening angle: 0 to 90 degrees
Keyboard tilt angle: 6 degrees or 12 to 20 degrees
Single 2m (78.7in. coiled “Y” cable

commentsKeyboard is unique in that it is the only mechanical buckling-spring keyboard made by IBM that is fully adjustable in terms of ergonomic position.  The two halves of keyboard are connected at ball-joint and can be separated into two separate pieces.  Split space bar has erase-eaze feature.   Keyboard can be also adjusted to various heights to accomodate most comfortable typing angle to alleviate stress on hands, wrists and arms.
commentsVery few were ever made by IBM.  Ergonomic keyboards are always very expensive compared to traditional keyboards… but we figure it is easier to buy an ergonomic keyboard than to pay an orthopedic surgeon to surgically operate and to rebuild your hand/wrist/arm.

Very limited item. One previous buyer was a developer from Google in Mountain View, another was to an engineer from “1 Infinite Loop”, third was to an orthopedic surgeon/ergonomics expert from New York, one was a dedicated vintage keybaord collector from Tokyo, Japan one was sent to www.dansdata.comfor their hardware review.

http://www.dansdata.com/clicky2.htm


 

 


Additional information

Weight8 lbs