Compactrons are a type of vacuum tube, which contain multiple electrode structures packed into a single enclosure. They were designed to compete with early transistor electronics and were used in televisions, radios, and similar roles.
Koninklijke Philips N.V., commonly shortened to Philips, is a Dutch multinational conglomerate corporation that was founded in Eindhoven in 1891. Since 1997, its world headquarters have been situated in Amsterdam, though the Benelux headquarters is still in Eindhoven. Philips was once one of the largest consumer electronics companies in the world, but later focused on health technology, having divested its other divisions.
Magnavox was an American electronics company. It was purchased by North American Philips in 1974, which was absorbed into Dutch electronics company Philips in 1991. The predecessor to Magnavox was founded in 1911 by Edwin Pridham and Peter L. Jensen, co-inventors of the moving-coil loudspeaker at their lab in Napa, California, under United States Patent number 1,105,924 for telephone receivers. Six decades later, Magnavox produced the Odyssey, the world's first home video game console.
Cooper Industries was an American worldwide electrical products manufacturer headquartered in Houston, Texas. Founded in 1833, the company had seven operating divisions including Bussmann electrical and electronic fuses; Crouse-Hinds and CEAG explosion-proof electrical equipment; Halo and Metalux lighting fixtures; and Kyle and McGraw-Edison power systems products.
The pentagrid converter is a type of radio receiving valve with five grids used as the frequency mixer stage of a superheterodyne radio receiver.
OSRAM Licht AG is a German company that makes electric lights, headquartered in Munich and Premstätten (Austria). OSRAM positions itself as a high-tech photonics company that is increasingly focusing on sensor technology, visualization and treatment by light. The company serves customers in the consumer, automotive, healthcare and industrial technology sectors. The operating company of OSRAM is OSRAM GmbH.
The induction lamp, electrodeless lamp, or electrodeless induction lamp is a gas-discharge lamp in which an electric or magnetic field transfers the power required to generate light from outside the lamp envelope to the gas inside. This is in contrast to a typical gas discharge lamp that uses internal electrodes connected to the power supply by conductors that pass through the lamp envelope. Eliminating the internal electrodes provides two advantages:
Thorn Electrical Industries Limited was a British electrical engineering company. It was listed on the London Stock Exchange, but merged with EMI Group to form Thorn EMI in 1979. It was de-merged in 1996 and became a constituent of the FTSE 100 Index, but was acquired by the Japanese Nomura Group only two years later. It is now owned by Terra Firma Capital Partners.
Philco is an American electronics manufacturer headquartered in Philadelphia. Philco was a pioneer in battery, radio, and television production. In 1961, the company was purchased by Ford and, from 1966, renamed "Philco-Ford". Ford sold the company to GTE in 1974, and it was purchased by Philips in 1981. In North America, the Philco brand is owned by Philips. In other markets, the Philco International brand is owned by Electrolux.
Delco Electronics Corporation was the automotive electronics design and manufacturing subsidiary of General Motors based in Kokomo, Indiana, that manufactured Delco Automobile radios and other electric products found in GM cars. In 1972, General Motors merged it with the AC Electronics division and it continued to operate as part of the Delco Electronics division of General Motors. When the corporation acquired the Hughes Aircraft Company, Delco was merged with it to form Hughes Electronics as an independent subsidiary.
An antique radio is a radio receiving set that is collectible because of its age and rarity.
Curtis Mathes, Inc., is a North American electronics retailer initially based in Garland, Texas, and specializing in the sale of private label brand electronics and repair services. It manufactured its own brand of televisions in Athens, Texas, until July 31, 1982; ten years later, it filed for Chapter 11 bankruptcy and reorganization which allowed it to stay in business and use future earnings to pay off creditors. The company is now based in Frisco, Texas.
SABA is a German electronics company founded in 1923 at Triberg im Schwarzwald, present-day Baden-Württemberg. SABA started as a clock-making company, then became a radio manufacturer, and a few years later a record label. In 1968, SABA sold the majority of the company to GTE, an American telephone company. In 1980, the company was purchased by Thomson SA and integrated as a separate business unit.
Tung-Sol was an American manufacturer of electronics, mainly lamps and vacuum tubes.
Osram Sylvania Inc. is the North American operation of lighting manufacturer Osram. It was established in January 1993, with the acquisition of GTE's Sylvania lighting division by Osram GmbH. In 2016, Osram spun off its general lighting business to Ledvance which received a license to sell lighting products under the Osram and Sylvania names.
Zinsco was a manufacturer of electrical distribution panels and circuit breakers, founded by Emile Martin Zinsmeyer and his son Martin Emile Zinsmeyer in the early 1930s.
The beam-index tube is a color television cathode ray tube (CRT) design, using phosphor stripes and active-feedback timing, rather than phosphor dots and a beam-shadowing mask as developed by RCA. Beam indexing offered much brighter pictures than shadow-mask CRTs, reducing power consumption, and as they used a single electron gun rather than three, they were easier to build and required no alignment adjustments.
Havells India Limited is an Indian multinational electrical equipment company, based in Noida. It was founded by Haveli Ram Gandhi, later sold to Qimat Rai Gupta who was his distributor. The company manufactures home appliances, lighting for domestic, commercial and industrial applications, LED lighting, fans, modular switches and wiring accessories, water heaters, industrial and domestic circuit protection switchgear, industrial and domestic cables and wires, induction motors, and capacitors among others. Havells owns brands like Havells, Lloyd, Crabtree, Standard Electric, Reo and Promptec.
Sylvania Lighting, Havells-Sylvania, and SLI, is an international designer and manufacturer of lighting products, trading as Sylvania. It has plants throughout Europe, Asia, North Africa and Central and South America, and is one of the few lighting companies that produces both lamps and lighting fixtures. It is owned by Shanghai Feilo Acoustics Ltd., having previously been owned by the Indian electrical company Havells.
