Connection to Contrast control

Connection. (Elec.) Electrical con­ductor joining parts of an electri­cal circuit.
Connector. (Elec.) Any device for holding in electrical contact the ends of conducting wires in such a manner that they may be readily released when it is desired to disconnect them.
Conoid. (Geom.) Having the form of a cone.
Conservation of energy. The prin­ciple that no energy is ever lost or wasted although it may assume dif­ferent forms.
Conservatory. (Arch.) A place of instruction, as a conservatory of music. A glassed-in building, either attached or detached, for the grow­ing of plants.
ConsiSency. (Phys.) Degree of den­sity.
Console. (Arch.) A supporting bracket usually ornamented' by a reverse scroll.
Console model~ (RadiO) A radio cabi­net, mounted on four legs, contain­ing the chassis, speaker, and all power equipment. The control equipment is mounted on the front face of the cabinet.
Constant. (Math.) A number deduced from actual experiment and used as a baSis in calculations.
Constant current. (Elec.) A current whose amperage is not variable.

Constant potential. (Elec.) A constant pressure or voltage in a power and light circuit.
Constant pressure. (Auto. Mech.) A term used in describing a type of pis­ton, usually alloy, the skirt of which is relieved to enable it to exert a rea­sonably equal pressure on the cyl­inder wall at all times.
Constant speed motor. (Elec.) A mo": tor which does not show a decrease in speed with an increase in load.
Constant vacuum carburetor. (Auto.) Contains ,a weighted valve operated by the pull of the intake­manifold vacuum to proportion the amount of fuel to air.
Constituent. (Chern.) One of the ele­. ments or compounds present.
Construction. The act of building; also that which is built; style of building, as of wood, iron, or steel construction.
Consulting engineer. An expert en­gineer usually of experience and standing in his profession who is re­tained to give advice on engineer..; ing matters.
Contact. (Elec.)The coming together (touching) of two or more specially arranged ends of electrical conduc­tors to complete an electrical circuit or circuits.
Contact breaker. (Elec.)A device for quickly and automatically breaking or making an electric circuit.
Contactors. (Elec.) Electromagnetically or manually operated contacts.
Contact-point presslire. (Auto. Elec.) The spring pressure which holds the contact points in closed positions.

Contact points. (Auto. Elec.) Small metals disks or points pf iridium, platinum, or alloy steel used to make and break the low-tension circuit.
Contact potential. The difference of potential that arises when two con­ductors of different materials are placed in contact.
Contad resistance. The resistance at the surface: of contact of two materials.
Contact print. (Photog.) A print . made with the negative and print­ing paper in direct contact.
Continental code. (Elec. ) A dot-and­ dash telegraphic code used in send­ing radio messages.
Continuous beam. (Arch.) A beam which rests on more than two supports.
Continuous duty. (Elec.) That de­mand on a system which requires operation at a constant load for an indefinite period of time.
Continuous extrusion. (Plost.) A process by which the plastic takes the shape of the die through which it passes and is forced out in continuous lengths.
Continuous hinge. (Furn.) A long strip hinge such as on the lid which covers the keyborad of a piano.
Continuous spectrum. A spectrum composed of a continuous range of emitted or absorbed radiation. Con­tinuous spectra are produced in the infrared and visible regions by hot solids.
Continuous vent. (Plumb.) A continuation of a vertical, or approximately vertical, waste pipe above the connection at which liquid wastes enter the waste pipe. The extension mayor may not continue in a vertical direction.
Continuous wave. An electromag­netic wave that is transmitted con­tinuously over a period of time, as in radio communication.
Contour. (Woodwkg.) The profile or section of a molding.

Contour lines. (Surv.) Lines placed on a map to show the topography of the ground and to give a reading of el­evations.
Contraction. (Fdry.) Decrease in vol­ume due to cooling.
Contractor. (Arch.) One who agrees to supply materials and to perform work for a specified sum. .
Contrast. (Tel.) This refers to the ratio of the dark to the light portions of a television picture. Pictures having high contrast have very deep black and brilliant whites while a picture with low contrast has an overall gray appearance.
Contrast control. (Tel.) A control on the receiver which regulates the tel­evision signal strength, changing the ratio of the dark to the light portions of a picture.