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  2. Silicone rubber keypad - Wikipedia

    en.wikipedia.org/wiki/Silicone_rubber_keypad

    Silicone Key web design. The technology uses the compression molding properties of silicone rubber to create angled webbing around a switch center. On depression of the switch, the webbing uniformly deforms to produce a tactile response. When pressure is removed from the switch, the webbing returns to its neutral position with positive feedback.

  3. List of keyboard switches - Wikipedia

    en.wikipedia.org/wiki/List_of_keyboard_switches

    Switch name Cherry MX equivalent Switch Type Actuation force Tactile force Actuation point Total travel Product code Durability (actuations) Cherry: Cherry: Black [1] Cherry MX Black: Linear: 0.60 N: N/A: 2.0 mm: 4.0 mm: MX1A-11xx >100 million Cherry: Cherry: Red [2] Cherry MX Red: Linear: 0.45 N: N/A: 2.0 mm: 4.0 mm: MX1A-L1xx >100 million ...

  4. Keyboard matrix circuit - Wikipedia

    en.wikipedia.org/wiki/Keyboard_matrix_circuit

    The switches for each key are connected to the microprocessor chip using a matrix circuit. Even though the SY77 has 61 keys, only two small ribbon cables of wiring comes from the keyboard matrix. There are at least two limitations with this system. The first is that it provides only a crude binary on/off signal for each key.

  5. Key switch - Wikipedia

    en.wikipedia.org/wiki/Key_switch

    A key switch (sometimes called a keyswitch or lock switch) is a key-operated switch. [1] Key switches are used in situations where access to the switch's functions needs to be restricted. [2] [3] Key switches are available as components with solder connections, and are available with a variety of ampere ratings. They may use tubular or other ...

  6. Pull switch - Wikipedia

    en.wikipedia.org/wiki/Pull_switch

    The most common use of a pull switch is to operate a ceiling electric light.The ceiling fan and mechanical wall fans are also appliances often operated by pull switches. . Pull switches may be either two-position (open or closed) or multi-position (allowing for different fan speeds or levels of illuminati

  7. Buckling spring - Wikipedia

    en.wikipedia.org/wiki/Buckling_spring

    Unicomp Model M with removed z key. The exposed buckling spring is visible. A buckling spring is a type of keyswitch mechanism, popularized by IBM's keyboards for the PC, PC/AT, 5250/3270 terminals, PS/2, and other systems. It was used by IBM's Model F keyboards (for instance the AT keyboard), and the more common Model M.

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    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  9. Trapped-key interlocking - Wikipedia

    en.wikipedia.org/wiki/Trapped-key_interlocking

    The key can then be used to unlock the kiln door. While the key is removed from the switch interlock, a plunger from the interlock mechanically prevents the power switch from being turned on. Power cannot be re-applied to the kiln until the kiln door is locked, releasing the key, and the key is then returned to the power switch interlock. [5]