amplified telephone
1telephone — telephoner, n. /tel euh fohn /, n., v., telephoned, telephoning. n. 1. an apparatus, system, or process for transmission of sound or speech to a distant point, esp. by an electric device. v.t. 2. to speak to or summon (a person) by telephone. 3.… …
2American Telephone & Telegraph — For other companies with similar names, see AT T (disambiguation). Infobox Company company name = AT T Corporation company logo = type = Private (Subsidiary of AT T Inc.) foundation = 1885 location = Bedminster, New Jersey, United States industry …
3Model 102 telephone — A Western Electric model 102 telephone with B1 base and E1 handset with early spitcup mouthpiece, refitted with new cords and modular plug. The Model 102 telephone (B1 mount/set) was Western Electric s first widely distributed telephone set to… …
4Plantronics — Plantronics, Inc. Type Public (NYSE: PLT) Industry Consumer electronics Founded 1961 Headquarters Santa Cruz, California …
5AT&T Corporation — For the 2005 parent company currently known as AT T and formerly Southwestern Bell/ SBC, see AT T. AT T Corp. Type Subsidiary Industry …
6Superheterodyne receiver — A 5 tube superheterodyne receiver made in Japan around 1955 In electronics, a superheterodyne receiver (sometimes shortened to superhet) uses frequency mixing or heterodyning to convert a received signal to a fixed intermediate frequency, which… …
7Hearing aid — Behind the ear aid In the ear aid …
8Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …
9Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
10Martin Rushent — Rushent in 2011 Background information Birth name Martin Charles Rushent[1] …
