Editing Marquardt Series 6180

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{{infobox dswitch
| image name        = Marquardt Series 6180 -- recognition.svg
| manufacturer      = [[Marquardt]]
| contact mechanism = [[Contact mechanism#Metal leaf|Metal leaf]]
| switch type       = Linear
| actuation force   = 
| introduced        = 1983<ref name="marquardt-c" />
| discontinued      = 1995<ref name="marquardt-c" />
| keycap mount      = [[keycap mount#Cherry MX mount|Cherry MX mount]]
| precedes          = [[Marquardt Series 6184]]
| patents           = [https://patents.google.com/patent/US4653179A US4653179A] (1985)
}}

'''Series 6180'''<ref name="marquardt-c" /> is a low-profile keyboard switch series.

==Description==
Every switch is equipped with a diode.

The upper shell may exist as both black and dark brown. Dark brown is confirmed; black is not confirmed due to photo quality.

US patent 4653179A covers the manufacture of the contact module used in several Marquardt types including Series 6180.

==Keyboards==
*Tysso PKB-080 (black top?)<ref name="tysso" />
*Unidentified model of Olympia Carrera typewriter (dark brown top)<ref name="carrera" /><ref name="carrera-1a" /> (appears to have a January 1987 manufacture date on the PCB, with chips from 1986)
*Unidentified model of Olympia Carrera typewriter (black top?)<ref name="carrera-2" />
*Unitek K-155

==Specifications==
*[[:File:Marquardt 6180.0101 drawing.pdf|Marquardt 6180.0101 drawing]] – SPST (1983)

==References==
<references>
<ref name="tysso">Geekhack — [https://geekhack.org/index.php?topic=47597 My "keyboard"]</ref>
<ref name="carrera">{{dead|Deskthority — [https://deskthority.net/photos-f62/olympia-carrera-typewriter-with-marquardt-linear-switches-t7616.html Olympia Carrera Typewriter with Marquardt Linear Switches]}}</ref>
<ref name="carrera-1a">Imgur — [http://imgur.com/a/7Gx3N Olympia Carrera]</ref>
<ref name="carrera-2">Reddit — [https://www.reddit.com/r/MechanicalKeyboards/comments/31hf0l/can_anyone_identify_the_switches_in_my_typewriter/ Can anyone identify the switches in my typewriter?]</ref>
<ref name="marquardt-c">Private correspondence with Marquardt</ref>
</references>

[[Category:Marquardt switches]]
[[Category:Keyboard switches with Cherry MX mount]]
[[Category:Linear switches]]
[[Category:Metal contact switches]]
[[Category:List of all keyboard switches]]