Editing Micro Switch ST Series

{{infobox dswitch
| image name        = Bud-115ST-Black-Switch-1.jpg
| manufacturer      = [[Micro Switch]]
| product code      = 
| switch type       = Tactile
| sense method      = [[Membrane]]
| switch mount      = [[Plate mount]]
| keycap mount      = 
| patents           = 
}}

'''Micro Switch ST''' is a series of computer keyboards and their associated switches. Switches are the [[slider]] over [[rubber dome]] over [[membrane]] type from [[Micro Switch]]. The clicky counterpart is [[Micro Switch SC Series]].

==Description==
The model 122ST brochure listed below describes the keyboard as "silent-tactile" but does not specifically cite the name "ST series". Model 122ST13S-25E is described as having "solid state capacitance switching", which seems to be at odds with discovered ST series keyboard units, which are all [[membrane]] based. The ST Series brochure linked below refers to "ST Low Profile Silent-Tactile keyboards" but makes no mention of the [[keystroke sensing]] method utilised.

In ST series keyboards found to date, the switch uppers are discrete, and are [[plate mount]]ed. The switch upper housing retains the slider. The rubber dome is retained by the slider using a friction fit. Potentially "ST" refers to the removable slider modules, which could have been adapted for capacitive sensing.

==Switches==
The known variants are as follows:

{| class="wikitable"
|-
! scope="col"| Slider colour
! scope="col"| Notes
|-
! scope="row"| Black
| Most common variant
|-
! scope="row"| Tan
| Space Bar stabilizer
|-
! scope="row"| Blue
| Keycap mount differs from other variants
|}

==Keyboards==
*[[Bull 115ST]] (115ST13-8E-1-J, black and tan, 1991)
*Celerity Computing 210121-A0003 (black, 1984)
*[[GRiD GRiDCase 1520]] rugged 286 Laptop (72ST22-1-J, black?, 1989)
*[https://deskthority.net/keyboards-f2/honeywell-d3013-t17169.html Honeywell D3013] unknown laptop (black and tan, 1989)
*[[IBM 73x3832 Quiet Touch]] (blue, 1987)
*Memorex Telex 957290-001<ref name="memorex"/>
*[[Micro Switch 122ST13S-25E]] (blue, 1987)
*[[Telex 122ST33S-46E-J]]

The IBM 73x3832 keyboard confusingly uses a variety of SC codes throughout, instead of the expected ST codes, as though it were using [[Micro Switch SC Series]] switches.

==Gallery==
The black switch below is branded with an older version of the Honeywell logo, a bold serif "H", enclosed in a square with one pair of opposite corners rounded.<ref name="logo"/> The tan switch is Micro Switch-branded ("MICRO").

<gallery widths=250 heights=187>
File:Bud-115ST-Black-Switch-1.jpg                            | Black version
File:Bud-115ST-Black-Switch-2.jpg                            | Black version
File:Celerity.jpg                                            | Black version (showing red slider)
File:Bud-115ST-Tan-Switch-1.jpg                              | Tan version
File:Bud-115ST-Tan-Switch-2.jpg                              | Tan version
File:IBM 73x3832 Unsaver Enter key switch and stabalizer.jpg | Blue version
File:IBM 73x3832 Unsaver spacebar key switch.jpg             | Blue version
</gallery>

==Documents==
*[[:File:MicroSwitch-ST-Keyboards-Comparison-Guide.pdf|Low Profile Silent-Tactile Keyboards Comparison Guide]]
*[[:File:MicroSwitch-122ST.pdf|IBM PC Or PC-AT Compatible Silent-Tactile Keyboard 122ST13S-25E]]

==References==
<references>
<ref name="logo">Logoblink.com — [https://logoblink.com/honeywell-logo/ Honeywell brief logo history and logo guidelines]</ref>
<ref name="memorex">Geekhack — [https://geekhack.org/index.php?topic=71734.0 Old Memorex Telex AT]</ref>
</references>

[[Category:Tactile switches]]
[[Category:Membrane switches]]
[[Category:Micro Switch switches]]
[[Category:Micro Switch keyboards]]
[[Category:Honeywell switches]]
[[Category:List of all keyboard switches]]