mains supply plug
41List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… …
42Transformer types — Circuit symbols Transformer with two windings and iron core. Step down or step up transformer. The symbol shows which winding has more turns, but not usually the …
43Portable appliance testing — For other uses, see PAT (disambiguation). A common label for certifying that a device has been tested. Portable appliance testing (commonly known as PAT or PAT Inspection or PAT Testing) is a process in the United Kingdom, New Zealand and… …
44main — [[t]me͟ɪn[/t]] ♦ mains 1) ADJ: det ADJ The main thing is the most important one of several similar things in a particular situation. ...one of the main tourist areas of Amsterdam... My main concern now is to protect the children... What are the… …
45Anaerobic digestion — and regenerative thermal oxidiser component of Lübeck mechanical biological treatment plant in Germany, 2007 …
46main — 1 adjective (only before noun) 1 bigger or more important than all other things, ideas, influences etc of the same kind: I noted down the main points of her speech. | The main bedroom is at the back of the house. | Lack of confidence was the main …
47Силовые вилки и розетки для переменного тока — Эта статья  о конструкции, технических особенностях и истории развития штепсельных разъёмов. О стандартах на штепсельные разъёмы, принятых в разных странах см. Список стандартов штепсельных разъёмов …
48Power connector — A power connector is an electrical connector designed to carry a significant amount of electrical power, usually as DC or low frequency AC. Some types of RF connector may also carry large amounts of power, but are considered as a separate… …
49Список стандартов штепсельных разъёмов и электросетей — Эта страница информационный список. См. также основную статью: Силовые вилки и розетки для переменного тока В мире наиболее распространены два основных стандарта напряжения и частоты. Один из них  американский стандарт 100 127 Вольт 60 Герц …
50main — main1 W1S1 [meın] adj [only before noun] [: Old English; Origin: mAgen , from mAgen strength ] 1.) bigger or more important than all other things, ideas etc of the same kind ▪ The main reason for living in Spain is the weather. ▪ What do you… …
