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  2. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    United States. [] In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens.

  3. Code 3 Collectibles - Wikipedia

    en.wikipedia.org/wiki/Code_3_Collectibles

    The models created by Code 3 Collectibles, were stock models which had been customized or converted from their original state. A few examples of Code 3 Collectibles models plain white cars or vans which have been painted or have had decals added with the livery of a police force such as stripes, force badge/crest, force code etc. Extras such as lightbars and possibly tools have been added as well.

  4. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the power and signal connections between the devices. A wiring diagram usually gives information about the relative position and arrangement of devices and terminals on the devices, to ...

  5. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    Red and blue emergency lights on a fire engine in Canberra, Australia. Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment, emergency vehicle lighting is generally used ...

  6. Bridged and paralleled amplifiers - Wikipedia

    en.wikipedia.org/wiki/Bridged_and_paralleled...

    Car audio amplifiers commonly have only a notional 13.8 volt supply, which would ordinarily limit the voltage swing available at the output to + and − 6.9 volts. Whilst it would be possible to achieve higher voltage swings by such means as DC-to-DC conversion of the supply voltage, using a bridge mode design allows for twice the voltage swing ...

  7. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  8. Code 3 (TV series) - Wikipedia

    en.wikipedia.org/wiki/Code_3_(TV_series)

    Code 3 is an American crime drama that aired in syndication in 1956 and 1957. [5][3][1][6] The stories were all based on actual files of the Los Angeles sheriff's office. [4] Stories were presented from the viewpoint of Assistant Sheriff George Barrett. At the end of each episode, Eugene W. Biscailuz, "the actual sheriff of Los Angeles County ...

  9. Cable harness - Wikipedia

    en.wikipedia.org/wiki/Cable_harness

    Cable harness. Harness of car audio cables. A cable harness, also known as a wire harness, wiring harness, cable assembly, wiring assembly or wiring loom, is an assembly of electrical cables or wires which transmit signals or electrical power. [1] The cables are bound together by a durable material such as rubber, vinyl, electrical tape ...