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Leviton was founded in 1906 by Russian immigrants Evser Leviton and his son Isidor Leviton when they began manufacturing brass mantle tips for natural gas lights in Manhattan's Lower East Side. [ 2 ] [ 3 ] [ 4 ] In 1910, Isidor designed a screw-in lampholder for the newly invented electric light bulb and within ten years the lampholders were ...
1 Commonly used mechanical switches on pre-built keyboards. ... Print/export Download as PDF; Printable version; In other projects Wikidata item;
Some manufacturers released some 4000-series equivalent CMOS circuits with a 74 prefix, for example, the 74HC4066 [2] was a replacement for the 4066 with slightly different electrical characteristics (different power-supply voltage ratings, higher frequency capabilities, lower "on" resistances in analog switches, etc.).
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Two light switches in one box. The switch on the right is a dimmer switch. The switch box is covered by a decorative plate. The first light switch employing "quick-break technology" was invented by John Henry Holmes in 1884 in the Shieldfield district of Newcastle upon Tyne. [1]
The "United" version of NX-2A replaced the intercabling connection blocks with wire wrap connections so that switches could be installed or expanded without having custom cable harnesses provided by North Electric. Switcher Family (NX-2A pre-installed in a trailer for rapid installation or portable/emergency use)
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 specially-shaped keys for extra security. [4]
Leviton: Frequently used in the United States to refer to any rocker light switch regardless of manufacturer, [92] [93] but still trademarked. [94] Dictaphone: Dictation machine: Nuance Communications, part of Microsoft: Used to describe devices that are used to record speech such as handheld voice recorders. [citation needed] Dobro: Resonator ...
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