permanent magnet material
61Tape head — For the album by King s X, see Tape Head. A tape head is a type of transducer used in tape recorders to convert electrical signals to magnetic fluctuations and vice versa. Contents 1 Principles of operation 1.1 Reversibility 1.2 Head g …
62electron tube — an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. Also called electronic tube. Cf. gas tube, vacuum tube …
63Alnico — is an acronymcite book title = The Insomniac s Dictionary edition = last = Hellweg first = Paul coauthors = year = 1986 publisher = Facts On File Publications id = 0 8160 1364 0 pages = 115] referring to alloys which are composed primarily of… …
64vacuum technology — Introduction all processes and physical measurements carried out under conditions of below normal atmospheric pressure. A process or physical measurement is generally performed in a vacuum for one of the following reasons: (1) to remove the …
65Magnetic base — as used in the engineering metaltrades. Fixed magnetic base with sna …
66Invention of the telephone — The modern telephone is the result of work done by many people, all worthy of recognition of their contributions to the field. Alexander Graham Bell was the first to patent the telephone, an apparatus for transmitting vocal or other sounds… …
67Circulator — For other uses, see Circulator (disambiguation). A waveguide circulator used as an isolator by placing a matched load on port 3. The label on the permanent magnet indicates the direction of circulation A circulator is a passive non reciprocal… …
68Garbage disposal — A garbage disposal, waste disposal unit, or garburator / garbarator (Canada) is a device, usually electrically powered, installed under a kitchen sink between the sink s drain and the trap which shreds food waste into pieces small enough to pass… …
69Oil filter — Spin on oil filter on a Saab 9 5 An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil. Oil filters are used in many different types of hydraulic machinery. A chief use of… …
70Betriebsmittelkennzeichen — Unter einem elektrischen Betriebsmittel versteht man ein Bauteil, eine Baugruppe oder ein Gerät einer elektrischen Anlage. In industriellen Anlagen werden elektrische Betriebsmittel üblicherweise mit sogenannten Betriebsmittelkennzeichen (BMK)… …
