Old Keyboard Key Switches

By Xah Lee. Date: 2022-06-05.

not a complete list, but i begin to collect and sort out.

Ancient Switches

invac optical switch 20171111 86729-s-s289x217

Invac PK-200, 1966 Invac Optical switch

univac keyboard 201711 01214

Univac, 1971 Univac Magnetic Separation Switch

ITW_magnetic_valve_G2_stabiliser_PJPSM-s250

ITW Magnetic Valve Switch 1975

ibm 5251 keyboard 201711 28942

IBM 5251, 1977 beam spring switch

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Buckling Spring Key Switch 1980s

hi-tek_tactile_n_linear_y7ZQ5-s250

Hi-Tek 725 Switch (Space Invader Switch) 1983

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Keyboard Cherry MX Switches 1983

Key Switch Topic

Noise Comparison