NMB notebook keyboards
Although NMB was a major manufacturer of notebook keyboards, only one such type is known to have been documented on their website. This was model NOTE85A.
Model NOTE85A is a scissor switch keyboard with an integrated Light Point™ trackpoint. The Light Point is “based on technology and software license from IBM” [sic], and uses NMB’s own strain gauge technology. The datasheet is marked KB10/95 which suggests that it is from 1995 (although the PDF is from 1998) which may be why the illustration of the keyboard omits Windows and menu keys. The assembly contains a 0.5 mm aluminium backplate.
|Full travel||3.0±0.5 mm|
|Peak force||45±15 gf|
|Operating force||25+15 gf|
|Rated lifetime||10 million cycles|
|Legend printing||Tampo with clear coat|
|Audible noise||40 dB maximum|
|Contact material||Mylar with silver–carbon overlay|
WLP-520F8 is an unidentified model of non-scissor notebook keyboard. The membrane sheet codes are 8770-0027 and 8770-0030. The date of manufacture appears to be April 1991.