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11National Grid (Great Britain) — For the UK Ordnance Survey National Grid for mapping co ordinates in Great Britain, see Ordnance Survey National Grid. 400 kV power line in Cheshire The National Grid is the high voltage electric power transmission network in …
12List of Tesla patents — Below is a list of Tesla patents. Dr. Nikola Tesla was an inventor who obtained around 300 patents [Snezana Sarbo, [http://www.tesla symp06.org/papers/Tesla Symp06 Sarboh.pdfNikola Tesla s Patents] , Sixth International Symposium Nikola Tesla,… …
13Pentagrid converter — For other types of frequency converters please, see Frequency converter. The pentagrid converter is a radio receiving valve (vacuum tube) with five grids used as the frequency mixer stage of a superheterodyne radio receiver. Grids of a 12SA7GT… …
14Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… …
15Nial — Paradigm(s) array Appeared in 1981 Designed by Mike Jenkins Developer Nial Systems Ltd Stable release 6.3 (August 2006) …
16Earthing system — In sulvent systems, an earthing system defines the electrical potential of the conductors relative to that of the Earth s conductive surface. The choice of earthing system has implications for the safety and electromagnetic compatibility of the… …
17Current clamp — For current clamp recording in neurons, see Electrophysiology#Current clamp. In electrical and electronic engineering, a current clamp or current probe is an electrical device having two jaws which open to allow clamping around an electrical… …
18List of The Transformers characters — This is a list of characters appearing in the original American Transformers cartoon, first aired between 1984 and 1987. Contents 1 Autobots 2 Decepticons 3 Humans 4 Aliens and Monsters …
19Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …
20Magnetic amplifier — The magnetic amplifier (colloquially known as a mag amp ) is an electromagnetic device for amplifying electrical signals. The magnetic amplifier was invented early in the 20th century, and was used as an alternative to vacuum tube amplifiers… …
