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Amp Racks - An amp rack is any furniture, fixture, or case where multiple amplifiers are mounted in slots or grooves, generally used in touring systems because they are easy to transport.

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Controllers - A hoist or motor controller is a machine for raising and lowering personnel or gear by means of a cable for the purpose of setting the gear in place on a truss or stage.

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Polarity - The polarity of an object is, in general, its physical alignment. The term is often used to describe the positive and negative ends of batteries and magnets.

In cell biology, polarity ref. Used . ers to cells not being point-symmetrical in their spatial organization. This is particularly evident for cells organized in single cell layers that separate organs or subcompartments in organ. Used . isms.

In chemistry, molecular polarity refers to the dipole-dipole intermolecular forces between the slightly positive end of one molecule to the negative end of another or the same molecule. Mole...

LCD - A liquid crystal display is a low power, flat, thin display device made up of color or monochrome pixels arranged in front of a light source or reflector.


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Adaptor - A connector allowing more than 2 electrical devices to be connected to a single power source. These connections are normally in parallel (each device is given the same voltage levels), but current is . Used . divided between them. Also known as a "Twofer".

3-way splitters are known as "Threefers".. Used . ...