Marquardt Series 6180
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| File:Marquardt Series 6180 -- recognition.svg | |
| Manufacturer | Marquardt |
|---|---|
| Introduced | 1983<ref name="marquardt-c" /> |
| Discontinued | 1995<ref name="marquardt-c" /> |
| Precedes | Marquardt Series 6184 |
| Switch type | Linear |
| Sense method | Metal leaf |
| Keycap mount | Cherry MX mount |
| Patents | US4653179A (1985) |
Series 6180<ref name="marquardt-c" /> is a low-profile keyboard switch series.
Description[edit | edit source]
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[edit | edit source]
- 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[edit | edit source]
- Marquardt 6180.0101 drawing – SPST (1983)
References[edit | edit source]
<references>
<ref name="tysso">Geekhack — My "keyboard"</ref>
<ref name="carrera">Deskthority — Olympia Carrera Typewriter with Marquardt Linear Switches (DEAD!)</ref>
<ref name="carrera-1a">Imgur — Olympia Carrera</ref>
<ref name="carrera-2">Reddit — Can anyone identify the switches in my typewriter?</ref>
<ref name="marquardt-c">Private correspondence with Marquardt</ref>
</references>
