Editing Siemens STB (section)

==Description==

*The series designations STB 11 and STB 21 stand for ''Schreibtaste'' (where ''B'' is possibly meant to differentiate it from the Siemens Albis or the [[Siemens ST|ST]] families), series ''1'' or ''2'', ''single'' pole
*Both series have variants with 4&nbsp;mm travel (which Siemens used for keyboards) and with 2.5&nbsp;mm travel (which Siemens used for panels).
*Square-post keycap mount with the same fastening mechanism as with [[RAFI Full-Travel Keyswitch|RAFI RS]] switches, partly compatible.
*Characteristic spherical top-hat keycaps, but also mesa-shaped keycaps exist.
*Key feel: all switches of the family have a silent tactile bump at about half the travel length. Except for the foil-sealed variants, the depression force rises linearly from 50 to 100 cN with a tactile bump at 65 - 75 cN. This can be likened to [[Cherry MX Black]] with an added tactility similar to [[Cherry MX Brown|MX Brown]] (light variant) or a bit more than [[Cherry MX Clear|MX Clear]] (heavy variant).