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Maestrovox
Maestrovox was a British company best known for its line of electron valve based electronic organs. They were designed and built by Victor Harold Ward. The first design model went on sale on 5 May 1952 at the British Industries Fair at Olympia, London, where it was hailed as the "Success of the Year" taking orders in excess of £80,000. Currently, only 24 are still known to exist. References Current total of known Maestrovox is 20 Further reading * ''British Communications and Electronics'', v. 1-2. Heywood & Co., 1954. External links Electronic organ manufacturing companies Musical instrument manufacturing companies of the United Kingdom {{Electronic-musical-instrument-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron Valve
A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplifier, amplification and current rectifier, rectification. Non-thermionic types such as a vacuum phototube, however, achieve electron emission through the photoelectric effect, and are used for such purposes as the detection of light intensities. In both types, the electrons are accelerated from the cathode to the anode by the electric field in the tube. The simplest vacuum tube, the diode (i.e. Fleming valve), invented in 1904 by John Ambrose Fleming, contains only a heated electron-emitting cathode and an anode. Electrons can only flow in one direction through the device—fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Organ
An electric organ, also known as electronic organ, is an electronic keyboard instrument which was derived from the harmonium, pipe organ and theatre organ. Originally designed to imitate their sound, or orchestral sounds, it has since developed into several types of instruments: * Hammond-style organs used in pop, rock and jazz; * digital church organs, which imitate pipe organs and are used primarily in churches; * other types including combo organs, home organs, and software organs. History Predecessors ;Harmonium The immediate predecessor of the electronic organ was the harmonium, or reed organ, an instrument that was common in homes and small churches in the late 19th and early 20th centuries. In a fashion not totally unlike that of pipe organs, reed organs generate sound by forcing air over a set of reeds by means of a bellows, usually operated by constantly pumping a set of pedals. While reed organs have limited tonal quality, they are small, inexpensive, self ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympia, London
Olympia London, sometimes referred to as the Olympia Exhibition Centre, is an exhibition centre, event space and conference centre in West Kensington, in the London Borough of Hammersmith and Fulham, London, England. A range of international trade and consumer exhibitions, conferences and sporting events are staged at the venue. There is an adjacent railway station at Kensington (Olympia) which is both a London Overground station, and a London Underground station. The direct District Line spur to the station only runs on weekends. Background The complex first opened in 1886. The Grand Hall and Pillar Hall were completed in 1885. The National Hall annexe was completed in 1923, and in 1930 the Empire Hall was added. After World War II, the West London exhibition hall was in single ownership with the larger nearby Earls Court Exhibition Centre. The latter was built in the 1930s as a rival to Olympia. In 2008, ownership of the two venues passed from P&O to Capco Plc whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Organ Manufacturing Companies
Electronic may refer to: *Electronics, the science of how to control electric energy in semiconductor * ''Electronics'' (magazine), a defunct American trade journal *Electronic storage, the storage of data using an electronic device *Electronic commerce or e-commerce, the trading in products or services using computer networks, such as the Internet *Electronic publishing or e-publishing, the digital publication of books and magazines using computer networks, such as the Internet *Electronic engineering, an electrical engineering discipline Entertainment *Electronic (band), an English alternative dance band ** ''Electronic'' (album), the self-titled debut album by British band Electronic *Electronic music, a music genre *Electronic musical instrument *Electronic game, a game that employs electronics See also *Electronica, an electronic music genre *Consumer electronics Consumer electronics or home electronics are electronic (analog or digital) equipment intended for everyday ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
