Ads
related to: rotary lamp switchOverall Customer Satisfaction 9.3 out of 10 - Bizrate.com
Search results
Results from the WOW.Com Content Network
Thus a rotary switch provides greater pole and throw capabilities than simpler switches do. Rotary switches were used as channel selectors on television receivers until the early 1970s, as range selectors on electrical metering equipment, as band selectors on multi-band radios, etc. Modern rotary switches use a "star wheel" mechanism to provide ...
The toggle light switch was invented in 1916 by William J. Newton. [2] As a component of an electrical wiring or home wiring system, the installation of light switches is regulated by some authority concerned with safety and standards. In different countries the standard dimensions of the wall mounting hardware (boxes, plates, etc.) may differ.
A 3-way lamp, also known as a tri-light, is a lamp that uses a 3-way light bulb to produce three levels of light in a low-medium-high configuration. A 3-way lamp requires a 3-way bulb and socket, and a 3-way switch. In 3-way incandescent light bulbs, each of the filaments operates at full voltage. Lamp bulbs with dual carbon filaments were ...
Many specialized forms exist, such as the toggle switch, rotary switch, mercury switch, push-button switch, reversing switch, relay, and circuit breaker. A common use is control of lighting, where multiple switches may be wired into one circuit to allow convenient control of light fixtures.
A mercury switch is an electrical switch that opens and closes a circuit when a small amount of the liquid metal mercury connects metal electrodes to close the circuit. There are several different basic designs (tilt, displacement, radial, etc.) but they all share the common design strength of non-eroding switch contacts.
US patent 3621157, filed in 1970 by Pierre Schwab, [1] is the earliest known DIP switch patent, which discloses a rotary style DIP switch. US patent 4012608, filed in 1975 by Joseph Lockard, [ 2 ] is a DIP switch with sliding levers, the modern DIP switch.
The switches are then connected to each other by a pair of wires called "travelers" (or "strappers" in the UK), and the lamp is connected to the common terminal of the second switch, as shown. Using the traveler system, there are four possible permutations of switch positions: two with the light on and two with the light off.
This category is for types of, or articles related to, electrical switch; see that article for an overview. Note that there are also other meanings of "switch", which are not covered by this category - see switch (disambiguation) .
Ads
related to: rotary lamp switchOverall Customer Satisfaction 9.3 out of 10 - Bizrate.com