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• 21:23, 19 October 2022 Philip talk contribs created page Glossary:AWG (Created page with "AWG or American Wire Guage is a standard for specifying wire diameters, mainly used in North America. In the UK, SWG (Standard Wire Guage) is more commonly used.")
• 21:04, 19 October 2022 Philip talk contribs created page Glossary:Magnetic induction (Created page with "Magnetic induction is the effect discovered by Michael Faraday, by which a voltage is induced in a conductor subjected to a varying magnetic field. This is the principal on which all dynamos and generators rely.")
• 20:58, 19 October 2022 Philip talk contribs created page Glossary:Dynamic microphone (Created page with "A dynamic microphone contains a permanent magnet and a coil which vibrates in sympathy with the sound, inducing a small voltage in the coil by the principle of magnetic induction.")
• 20:51, 19 October 2022 Philip talk contribs created page Glossary:Condenser microphone (Created page with "A condenser microphone (typically a high quality or professional one) contains a thin conducting diaphragm exposed to the sound and a fixed metal plate behind it. When charged to a relatively high voltage, the varying capacitance between them generates a varying output.")
• 20:32, 19 October 2022 Philip talk contribs created page Glossary:Electret microphone (Created page with "An electret microphone is one containing an electret material (having a built-in electric charge) to convert the sound into a varying electric charge. An FET is always incorporated in it requiring a supply of a few volts, to convert the charge into a varying voltage.")
• 20:10, 19 October 2022 Philip talk contribs created page Glossary:Thunderbolt (Created page with "Thunderbolt is a high speed data interface mainly used for storage and video display devices.") Tag: Visual edit
• 20:00, 19 October 2022 Philip talk contribs created page Glossary:Firewire (Created page with "Firewire (also known as IEEE 1394) is a high speed data interface mainly used for video and external hard disks.") Tag: Visual edit
• 19:47, 19 October 2022 Philip talk contribs created page Glossary:Lightning (connector) (Created page with "Lightning is an Apple-proprietary connector used on Apple iPods, iPhones and iPads since 2012. It can be inserted either way up and can be used for charging, sync and accessories. It contains an authentication chip making it difficult for 3rd parties to produce compatible accessories.") Tag: Visual edit
• 19:20, 19 October 2022 Philip talk contribs created page Glossary:Tolerance (Created page with "Tolerance is an indication of the accuracy of a device specification. For example, a 10 resistor with a tolerance of 5% may in fact have a value anywhere between 95 and 105.")
• 11:37, 8 October 2022 Philip talk contribs moved page Glossary/Polyfuse to Glossary:Polyfuse without leaving a redirect
• 11:34, 8 October 2022 Philip talk contribs created page Glossary/Polyfuse (Created page with "A polyfuse or polyswitch or polymeric positive temperature coefficient (PPTC) device is an alternative to a conventional fuse for protection against a dangerously large current flow in a fault condition. It consists of a polymer loaded with carbon particles. An excessive current causes it to heat up and the polymer to expand so that the carbon particles are no longer in contact. As a result, the current can no longer flow until it's allowed to cool down. See Polyfuses in...")
• 20:59, 7 October 2022 Philip talk contribs moved page Glossary:SDF to Glossary:SDR without leaving a redirect
• 20:45, 7 October 2022 Philip talk contribs created page Glossary:GPS (Created page with "GPS or Global Positioning System is a satelite navigation system allowing receivers to determine their geographical position by comparing the delays in time of arrival of signals from a minimum of 4 satellites. The US, Russia, the EU and other countries each have their own systems but a suitable GPS receiver can combine the results from more than one system to improve its accuracy.") Tag: Visual edit
• 20:03, 7 October 2022 Philip talk contribs created page Glossary:SDF (Created page with "An SDR or Software Defined Radio is a radio where the wanted signal is extracted by software, or in the case of a transmitter, the signal is generated by software. Thus, one radio can perform many different functions just by changing the software, whether it be sound or television broadcast, or data such as WiFi, Bluetooth or GPS.") Tag: Visual edit
• 14:42, 6 October 2022 Philip talk contribs created page Radio controlled toys (Created page with "This is currently a skeleton page. Please help by adding your contributions either here or in the associated Discussion page. This page will cover radio controlled model cars, boats and similar items. ==Summary== These items all contain a battery, radio receiver, electronic controller and one or more motors. Your first task may be to determine which of those needs attention. ===Safety=== 30px|left ::These devices usually contain a lithium batter...")
• 14:42, 6 October 2022 Philip talk contribs created page Personal e-transport (Created page with "This is currently a skeleton page. Please help by adding your contributions either here or in the associated Discussion page. This page will cover e-bikes, e-scooters, hoverboards and similar battery-powered personal transport devices. ==Summary== These devices all contain a battery, controls and/or sensors, control electronics, charging electronics and a motor. Your first task may be to determine which of those needs attention. ===Safety=== File:Warning03.png|30px|...") Tag: Visual edit: Switched
• 13:52, 27 September 2022 Philip talk contribs created page Translations:Stuff/13/fr (Created page with "==Sommaire==")
• 13:52, 27 September 2022 Philip talk contribs created page Translations:Stuff/12/fr (Created page with "Ceci est une page sur des bidules - comment ça marche et comment y remédier.")
• 13:49, 27 September 2022 Philip talk contribs marked Stuff for translation
• 10:57, 27 September 2022 Philip talk contribs created page Talk:Coffee makers (Created page with "'''This is the How to drive screws like a pro Discussion page.''' You are encouraged to leave any comments or queries below. Please sign all contributions by appending 2 hyphens and 4 tildes (<nowiki>--~~~~</nowiki>), which will be automatically expanded into your user name and a time stamp. ----")
• 10:41, 27 September 2022 Philip talk contribs created page New Page (Created blank page)
• 09:32, 15 September 2022 Philip talk contribs created page Glossary:Source, Gate, Drain (Created page with "The source, gate and drain are the three terminals of a field-effect transistor (FET). See Transistors in the Wiki.")
• 09:24, 15 September 2022 Philip talk contribs created page Glossary:Emitter, Base, Collector (Created page with "The emitter, base and collector are the three terminals of a junction or bipolar transistor.")
• 09:11, 15 September 2022 Philip talk contribs created page Glossary:Saturation (magnetic) (Created page with "A magnetic material such as iron is said to be saturated when it cannot be magnetised any more. This is undesirable in a transformer or an inductor as its performance is then reduced. But in digital magnetic recording (in a hard disk or a digital tape) the surface is deliberately saturated in order to reliably record ones and zeros.") Tag: Visual edit
• 08:59, 15 September 2022 Philip talk contribs created page Glossary:Saturation (transistor) (Created page with "When a junction transistor used as a switch in a digital circuit is turned on as hard as it will go it is said to be saturated. In this condition there is excess charge in the collector region, and this has to drain away before the transistor will switch off again. This limits the speed at which it can switch, and so saturation is a condition designers try to avoid.")
• 21:34, 14 September 2022 Philip talk contribs created page Glossary:Saturation (colour) (Created page with "The saturation of a colour is its purity. This can be used together with the chrominance (the hue) and the luminance (the brightness) as an alternative to specifying the red, green and blue (RGB) components. This is useful because the eye perceives variations of chrominance and saturation across an image much less sharply than variations of luminance. Hence these latter can be presented at lower definition...") Tag: Visual edit
• 21:31, 14 September 2022 Philip talk contribs created page Glossary:Chrominance (Created page with "Chrominance is the hue of a colour. This can be used together with the luminance (the brightness) and the saturation (the purity of the colour) as an alternative to specifying the red, green and blue (RGB) components. This is useful because the eye perceives variations of chrominance and saturation across an image much less sharply than variations of luminance. Hence these latter can be presented at lower definition with no visible degradation in the ima...") Tag: Visual edit
• 21:25, 14 September 2022 Philip talk contribs created page Glossary:Luminance (Created page with "A colour in an image or video can most simply be defined by its red, green and blue (RGB) components, but in principle any 3 independant properties can be used. Another way is by specifying its luminance (brightness), its chrominance (the hue of the colour) and its saturation (the pureness of the colour). This is useful because the eye perceives variations in luminance across an image much more sharply than variations of chrominance or saturation. Hence...") Tag: Visual edit: Switched
• 21:11, 14 September 2022 Philip talk contribs created page Glossary:CMYK (Created page with "Rather than the primary colours red, green and blue, printers use the complementary colours cyan, magenta and yellow (referred to as CMY) but also black to darken a pixel as required. This is then referred to as CMYK.") Tag: Visual edit
• 21:06, 14 September 2022 Philip talk contribs created page Glossary:CMY (Created page with "A colour image or video can be represented by the red, greeen and blue (RGB) primary colours added together in appropriate proportions, but this doesn't work for printing, since each colour ink subtracts a range of colours from the incident white light rather than adding anything. So printers use the complementary colours Cyan (green + blue, absorbing red light), Magenta (blue + red, absorbing green light) and Yellow (red + green, absorbing blue light). In practice, prin...") Tag: Visual edit
• 20:55, 14 September 2022 Philip talk contribs created page Glossary:RGB (Created page with "RGB refers to the separate red, green and blue components of a colour image or video.") Tag: Visual edit
• 20:52, 14 September 2022 Philip talk contribs created page Glossary:NIC (Created page with "A NIC or Network Interface Controller is the part of a computer or router that connects it to a network. Formerly it was often a separate add-on card but nowadays it's nearly always buit-in to the computer unless an extra one is needed. A computer connected to more than one network or a router has a NIC for each network, and each must have its own IPAddress.")
• 16:19, 14 September 2022 Philip talk contribs deleted page Talk:Module:Arguments (content was: "'''This is the Module:Arguments Discussion page.''' You are encouraged to leave any comments or queries below. Please sign all contributions by appending 2 hyphens and 4 tildes (<nowiki>--~~~~</nowiki>), which will be automatically expanded into your user name and a time stamp. ----", and the only contributor was "Pleriche" (talk))
• 09:14, 12 September 2022 Philip talk contribs moved page DVI to Glossary:DVI without leaving a redirect
• 09:09, 12 September 2022 Philip talk contribs created page Glossary:DisplayPort (Created page with "DisplayPort is a standard for carrying digital video from a source such as a computer to a display. It can also carry digital audio, USB and other types of data. The connectors are rectangular but with one corner shaved off. There are also mini and micro versions.") Tag: Visual edit
• 08:55, 12 September 2022 Philip talk contribs created page DVI (Created page with "DVI is a standard for carrying analogue and/or digital video from a source (most commonly a computer) to a display device. It uses a connector which is almost rectangular, but with two corners on the same long edge slightly rounded. The connectors can accommodate 3 rows of 8 pins plus an extra 4 in a separate group for analogue video, but the number actually present varies according to the type and number of video channels supported.")
• 08:42, 12 September 2022 Philip talk contribs created page Glossary:HDMI (Created page with "HDMI is a standard for carrying digital video and audio from a source such as a computer or a TV tuner to a display device such as a flat screen monitor or a projector. It uses a connector in standard, mini and micro sizes, all shaped as a rectangle with two chamfered corners on the same long edge.")
• 08:29, 12 September 2022 Philip talk contribs created page Glossary:VGA (Created page with "VGA (or Video Graphics Adapter) the the oldest, yet still very widely used standard for connecting a video monitor to a computer. It uses a 15 pin D-shaped connector carrying separate analogue signals representing the red, green and blue picture components.")
• 21:26, 11 September 2022 Philip talk contribs created page Glossary:USB (Created page with "USB or Universal Serial Bus is a method of connecting a wide range of peripheral devices to a computer, such as keyboards and mice, storage devices and many more. Several revisions of the standard from USB 1.0 to USB 4 have successively increased its data transfer capability.")
• 18:55, 11 September 2022 Philip talk contribs created page Glossary:Electret (Created page with "An electret is a material having a permanent built-in electric charge, like the electrical equivalent of a permanent magnet.") Tag: Visual edit
• 17:19, 9 September 2022 Philip talk contribs created page Glossary:Memory effect (Created page with "The memory effect is the property of some types or rechargeable batteries to "remember" if they have frequently been only partially discharged. They can then become reluctant to deliver more charge in future. The cure is to fully dischage then fully recharge them periodically. NiCd batteries are particularly prone, and NiMH rather less so.") Tag: Visual edit
• 16:43, 9 September 2022 Philip talk contribs created page Glossary:Fibre Optics (Created page with "If you feed light into the end of a thin glass or transparent plastic fibre, it will be constrained to the fibre by total internal reflection and emerge at the far end, even if the fibre is many miles long. Furthermore, with high quality fibre the losses can be much less than with an electrical cable, and light can carry vastly more data than an electrical signal. Fibre optics is the application of this principle, together with the ancilliary lasers or Glossary:LED|LED...") Tag: Visual edit
• 16:27, 9 September 2022 Philip talk contribs created page Glossary:Waveguide (Created page with "At the highest frequencies (GHz and above), every bit of wire acts like an aerial, so you can no longer rely on sending a signal down a wire and expecting it to get to the other end. So why not let it do its thing? Feed it into an aerial at the end of a copper pipe and it'll bounce all the way down the inside and come out at the far end. This is what a waveguide is. A microwave oven contains a waveguide to feed the energy from the...") Tag: Visual edit
• 16:14, 9 September 2022 Philip talk contribs created page Glossary:Quantum Computer (Created page with "Don't worry, you may never have to fix one of these. One of the predictions of Quantum Mechanics is that sub-atomic particles can effectively be in more than one state at a time. In theory, you should be able to use this property to build a computer that explores many possible solutions to a problem simultaneously rather than trying them one by one, as a normal computer would. This could be really neat for cracking cryptographic codes, or w...") Tag: Visual edit
• 15:54, 9 September 2022 Philip talk contribs created page Glossary:Quantum Mechanics (Created page with "Quantum Mechanics (or QM for short) is the counter-intuitive theory of how things behave at the atomic and sub-atomic levels. It has passed every test physiscists have thrown at it, yet nobody understands it, only how to use its predictions to design lasers and silicon chips and al the modern gadgets that depend on them.") Tag: Visual edit
• 15:42, 9 September 2022 Philip talk contribs created page Glossary:VSWR (Created page with "If you connect a transmitter to an aerial via a long cable, at any discontinuity in the cable, some of the energy will be reflected back towards the transmitter instead of reaching the aerial. At some points between the transmitter and the discontinuity, the phases of the reflected and outgoing waves will reinforce and at other points they will partially cancel, creating "standing waves". The Voltage Standing Wave Ratio or VSWR is the ratio of the highest to the lowest v...") Tag: Visual edit
• 15:04, 9 September 2022 Philip talk contribs created page Glossary:Kirchoff's Laws (Created page with "You can calculate the voltages and currents in a simple circuit with Ohm's Law, but not for more complex circuits (such as a decorative net curtain of LEDs). Kirchoff's Laws allow you to write down a series of simultaneous equations which you can solve to find all the voltages and currents.")
• 14:59, 9 September 2022 Philip talk contribs created page Glossary:Black Box (Created page with "Often, a complex system can be broken down into several subsystems. So long as you know the inputs and the outputs of a sybsystem and how they're related, you can understand the whole system by regarding that subsystem as a "black box", without considering, or even knowing what's inside it.")
• 12:33, 9 September 2022 Philip talk contribs created page Glossary:Collet (Created page with "A collet is a device for holding a spindle or a rotary tool such as a drill. It consists of a hollow metal cylinder with several slits along part of its length. It is sized so that the tool is a sliding fit inside it. The slits then allow it to be squeezed by some mechanism in order to securely grip the tool.")
• 12:16, 9 September 2022 Philip talk contribs created page Glossary:SMPS (Created page with "A Switch-mode power supply is a power supply which uses a switch-mode regulator, generally in conjunction with a small ferrite-core transformer, rather than a heavy and bulky iron-core transformer and linear regulator.")