Marquardt provided some detailed information for the switches where documentation remains.
The PDFs supplied by Marquardt may be freely republished with permission of Marquardt GmbH.
Marquardt also produced a keyboard switch colloquially referred to as the “Butterfly” switch; this can be seen in their Electronic Engineers Master 1985–86, where it is shown but not named.
Marquardt supplied a catalogue page showing their keyboard models: Model 7064 (full-size), Model 7065 (colloquially known as the “Mini”), and 7060 (the 7065 internals, intended for customer-specific applications).
- MARQUARDT – Ihr Partner für individuelle Tastaturen
- 7064.1101 19″ rack version
- Marquardt advertisement, Electronic Engineers Master 1985–86 Volume B, scanned by Bitsavers