Transducer to Transition strip
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ity electro-mechanical devices-particularly turntables - implying professional standard of performance.
Transducer. Device for converting energy from one form to another e.g. ~,speaker converts from electrical to acoustic, a tape head' converts from magnetic to electrical.
Transept. (Arch.) That portion of a church which passes tranversely between the nave and 'dtoir at right angles, and so forms a cross on the plan.
Transfer. To remove from one place to another.
Transfer calipers. (Mach.) Used in measuring recesses and in places where the adjustment made must be shifted in order to remove them from the work, after which the legs can be shifted to the exact size of the part being measured.
Transfer molding. (Plast.) Another name for injection molding of thermosetting metarials.
Transfer paper. (Plast.) A specially finished paper of tissue substance used for making lithograph transfers and the like.
Transformer. An instrument by means of which electrical currents are changed in regard to voltage and amperage from high to low or vice versa.
Transistor. (Elec.) A compact unit performing many of the functi~s of vacuum tubes in electronic circuits with th~ advantage of small size' and cool instantaneous operation; an active sem'iconduCtor device with three or more electrodes.
Transistor radio. (Rad.) One in which transistors are used instead of vacuum tubes. These are miniature components' employed throughout the circuitry and power supply, usually small batteries in place of house current. The low power requirement of the transistors results in long battery life and their relatively small size permits compact design.
Transit. Consists principally of (a) a telescope for sighting, (b) graduated arcs and a vernier for measuring horizontal and vertical angles, (c) a level, (d) a tripod with levelling screws. (Surv.) An instrument commonly used by surveyors and engineers for measuring angles, determining bearings, and also for leveling.
Transite. (Metal.) A trade name for a material of asbestos fiber and Portland cement molded under high pressure. Used for fireproof walls, roofing, and in lining ovens, etc.
Transition strip. (Aero.)A section of a landing area adjacent to a runway or other hard-surfaced area, constructed of crushed stone or other suitable mateial, properly bound, to insure safe landing and taxiing of
Transit man to Trass an airplane across such a runway or area in any direction.
Transit-man. One who operates a surveyor's transit. He need not necessarily be a graduate engineer.
Translucent. Semitransparent. (Pap erm kg. ) A coated cardboard having a glossy finish.
Transmission. (Auto.) The name given to arrangement ot gears, contained in a housing attached to the rear end of the motor, by which variations of speed ratios and forward and reverse motion are obtained.
Transmission line. Strictly, a coaxial cable used to convey RF signals, but commonly a circuit arrangement with distributed reactance to simulate such a line. Some loudspeaker enclosures of damped labyrinth type simulate this acousticalIy.
Transmitter. (Elec.) (I) In telephony, that part of the instrument into which.
one speaks. It consists of two flat carbon electrodes, one mounted on a vibrating diaphragm, and the other stationary. Between them is a mass of granular carbons. (2) In telegraphy, the key for sending signals.
Transmitting set. (Radio) A set con
sisting of apparatus employed in the generation of a modulated or continuous radio carrier wave at a
. certain frequency.
Transmutation. (Elec.) The changing of one element into another. (See Alchemy.) In recent years transmutation has been accomplished by bom-barding elements with particles given off by a radium preparation. Another method makes use of the cyclotron.
Transom. (Arch.) A sroalI window over a door, or other' window.
Transom bar. (Arch.)The horizontal member which divides an opening into two parts usually between top of a doorway and a transom above.
Transparency. (Photog.) A transparent positive photograph viewed by transmitted light.
Transport. The tape handler or tape machine which moves the tape across a set of heads for record or playback purposes.
Transparent. Transmitting light so that objects may be distinctly seen. Clear; luminous; bright.
Transverse. The lateral direction across the width of a tape.
Transpose. (Algebra) To transfer from one side of an equation to the other, with changed signs, so as to retain the quality of the members.
Trap. (Engin.) In steam heating systems, a device .for draining condensation and air from radiators, piping systems, etc., without passing steam.
Trap door. (Arch.) A door or cover used to close off an opening in floor, ceiling, or roof.
Trappezium .( Geom.) A quadrangular figure which has two parallel sides. (Math.) Area = half the sum of parallel sides. x perpendicular height.
Trap rock. A very hard, durable rock, difficult to quarry; widely used for roads and railroad ballast.
Trass (Plaster.) A kind of gray, yellow. or whitish earth common in
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