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Toy Transmitter Instruction Manual
Toy Transmitter Instruction Manual

... of Radio Waves it is very high; like 729000 Hertz or say 14000000 Hertz and so on per second). This tiny transmitter with only one transistor is also generating high frequency currents. Electrical Oscillation means rapid to and fro motion of electrons or electric currents. As oscillating current is ...
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... While the above establishes a wireless connection between two separate circuits, there are two considerations which will expand the range and efficiency of these two devices. First of all, each transmitter device has an supply voltage range of 2 – 12 volts. The higher the voltage, the stronger the s ...
Figure Q5 - University of Brighton
Figure Q5 - University of Brighton

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planck`s constant - Department of Physics | Oregon State
planck`s constant - Department of Physics | Oregon State

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... This paper is my theory as to how an internal combustion engine can be run on only water vapor or only on air. Now to most people that would sound a bit impossible, particularly if the engine were not powered by steam or compressed air, but merely on a generated SPARK. This is what I intend to prove ...
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... R - the resistance of the resistor (measured in ohms = V/A); L - the inductance of the inductor (measured in henrys = H = V·s/A) C - the capacitance of the capacitor (measured in farads = F = C/V = A·s/V) q - the charge across the capacitor (measured in coulombs C) ...
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OSCILLATOR, VERY LOW FREQUENCY - 0.1Hz

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Spark-gap transmitter



A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""
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