
HW8
... 3. A transformer is supplying power to a neon sign. These are special transformers called ballasts. The neon tube is basically an open circuit when we turn on the power. If we can apply a high voltage (~10 kV) the tube breaks down and we have approximately a short circuit and the gas glows. We have ...
... 3. A transformer is supplying power to a neon sign. These are special transformers called ballasts. The neon tube is basically an open circuit when we turn on the power. If we can apply a high voltage (~10 kV) the tube breaks down and we have approximately a short circuit and the gas glows. We have ...
Ignition Analysis - Snap-on
... By triggering on an individual cylinder we can see that it is normal for firing voltage to vary in any single cylinder. High spikes or kV readings indicate high secondary circuit resistance. This can be caused by a lean air/fuel mixture, a wide spark plug gap, or a high resistance or open spark plug ...
... By triggering on an individual cylinder we can see that it is normal for firing voltage to vary in any single cylinder. High spikes or kV readings indicate high secondary circuit resistance. This can be caused by a lean air/fuel mixture, a wide spark plug gap, or a high resistance or open spark plug ...
Ignition Basics
... boots of choice and cut the wires to the desired length. Most OEM wires use a carbon fiber as this produces minimal RF noise. The down side of carbon fibers is high resistance and thus reduced spark energy. Solid wires have very low resistance, but typically produce unacceptable amounts of RF interf ...
... boots of choice and cut the wires to the desired length. Most OEM wires use a carbon fiber as this produces minimal RF noise. The down side of carbon fibers is high resistance and thus reduced spark energy. Solid wires have very low resistance, but typically produce unacceptable amounts of RF interf ...
How to Choose the Best Spark Tester for your Application: AC vs. DC
... operate at power mains frequencies, generally 50 or 60 Hertz, and “high frequency” types that operate at frequencies between 500 Hz and 3kHz. Impulse testers, which are no longer in common use, are not discussed. ...
... operate at power mains frequencies, generally 50 or 60 Hertz, and “high frequency” types that operate at frequencies between 500 Hz and 3kHz. Impulse testers, which are no longer in common use, are not discussed. ...
what is a tesla coil
... scientist Nikola Tesla (born 1856, died1943). It is a high voltage, high frequency, power generator, primarily built for conducting experiments and to observe phenomenon associated with alternating electricity. With this coil, Tesla was able to generate voltages of such magnitude, they would shoot o ...
... scientist Nikola Tesla (born 1856, died1943). It is a high voltage, high frequency, power generator, primarily built for conducting experiments and to observe phenomenon associated with alternating electricity. With this coil, Tesla was able to generate voltages of such magnitude, they would shoot o ...
Document
... scientist Nikola Tesla (born 1856, died1943). It is a high voltage, high frequency, power generator, primarily built for conducting experiments and to observe phenomenon associated with alternating electricity. With this coil, Tesla was able to generate voltages of such magnitude, they would shoot o ...
... scientist Nikola Tesla (born 1856, died1943). It is a high voltage, high frequency, power generator, primarily built for conducting experiments and to observe phenomenon associated with alternating electricity. With this coil, Tesla was able to generate voltages of such magnitude, they would shoot o ...
examination of marine engineer officer
... of the drum 0.5m and the motor speed 960 rev/min. Under these conditions the input to the motor was 30A at 230V. Calculate the output of the motor and its efficiency. ...
... of the drum 0.5m and the motor speed 960 rev/min. Under these conditions the input to the motor was 30A at 230V. Calculate the output of the motor and its efficiency. ...
Spark Plugs
... Heat range will primarily be what you are changing Does not give you extra power, keeps you from losing power when driving under heavy load for long periods of time Normal change will be 1 or 2 heat ranges colder. Unusual to go hotter. ...
... Heat range will primarily be what you are changing Does not give you extra power, keeps you from losing power when driving under heavy load for long periods of time Normal change will be 1 or 2 heat ranges colder. Unusual to go hotter. ...
Spark Tester for Thermoplastic Waterstop Welds
... Sika Greenstreak’s Spark Tester is a hand-held unit which generates a high voltage at a high frequency. It is intended for intermittent use, no more than 10 minutes at a time. It has an output of between 20,000 to 45,000 volts, at a frequency of approximately 500 kHz. When properly adjusted, the ele ...
... Sika Greenstreak’s Spark Tester is a hand-held unit which generates a high voltage at a high frequency. It is intended for intermittent use, no more than 10 minutes at a time. It has an output of between 20,000 to 45,000 volts, at a frequency of approximately 500 kHz. When properly adjusted, the ele ...
A low-inductance, long-life, triggered spark gap
... There is an increasing interest in the development and fabrication of fast switches for high voltage applications, such as in pulsed lasers, electron beam generators, Rash tubes, Kerr cells and Pockels cells. The two types of switches usually employed are thyratrons and spark gaps. Thyratrons are tr ...
... There is an increasing interest in the development and fabrication of fast switches for high voltage applications, such as in pulsed lasers, electron beam generators, Rash tubes, Kerr cells and Pockels cells. The two types of switches usually employed are thyratrons and spark gaps. Thyratrons are tr ...
Abstract - 1000kv technologies
... used commercially in sparkgap radio transmitters for wireless telegraphy until the 1920s,[1][9][10][11][12][13] and in medical equipment such as electrotherapy and violet ray devices. Today their main use is for entertainment and educational displays, although small coils are still used today as lea ...
... used commercially in sparkgap radio transmitters for wireless telegraphy until the 1920s,[1][9][10][11][12][13] and in medical equipment such as electrotherapy and violet ray devices. Today their main use is for entertainment and educational displays, although small coils are still used today as lea ...
development and testing of electronic devices providing functioning
... With the ITER tokamak in operation, it is necessary to commutate high DC currents both for generation of the plasma at the beginning of each cycle and for protective energy discharge in case of quench in the superconducting coils. To solve these problems a wide range of devices using different switc ...
... With the ITER tokamak in operation, it is necessary to commutate high DC currents both for generation of the plasma at the beginning of each cycle and for protective energy discharge in case of quench in the superconducting coils. To solve these problems a wide range of devices using different switc ...
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.""