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RCA Victor began selling the first all-electric Victrola in 1930 and in 1931 the company attempted to revitalize record sales with the introduction of 33 1 ⁄ 3 revolutions-per-minute (rpm) long play records, which were a commercial failure during the Great Depression, partly because the Victrolas with two speed turntables required to play ...
In 2009, an agreement was made between Discount Two Way Radio Corporation (DTWR) and Technicolor SA to manufacture Two-way radio products under the RCA brand. [1] [2] RCA Two-way radios is the official sponsor of the United States Bobsled and Skeleton Team for the 2022 Winter Olympic Games in Beijing. [3]
Each connection to a telephone set required six wires from the key system: [5] One pair (two wires) carried the talk circuit (tip and ring), one pair carried control information, known as A-Leads, for that line, designated A and A1, and the third pair carried current to a lamp for the specific line key position on the telephone set (L and LG).
For example, some systems used two-tone sequential paging to alert a mobile or handheld that a wired phone was trying to call them. Other systems used DTMF. Some used a system called Secode 2805 which transmitted an interrupted 2805 Hz tone (in a manner similar to IMTS signaling) to alert mobiles of an offered call. Some radio equipment used ...
Effective July 1, 2009 RCA, which was acquired by TTE/TTL, a China company, terminated all of the RCA Authorized Service Companies who have provided repair services for RCA consumer products for over 60 years. RCA also terminated all of their consumer service employees and shut down. TTE/TTL contracted with DEX to provide repair services.
In telephone systems where calls from distant automated exchanges arrive for manual subscribers or non-dialable points, there often would be a ringdown operator (reachable from the distant operator console by dialling NPA+181) who would manually ring the desired subscriber on a party line or toll station. On some systems, this function was ...
The RCA connector [3] is a type of electrical connector commonly used to carry audio and video signals. The name RCA derives from the company Radio Corporation of America, which introduced the design in the 1930s. [4] The connector’s male plug and female jack are called RCA plug and RCA jack. It is also called RCA phono connector [5] or phono ...
In 1924, these cost $224 and $475 respectively. [3] Up to 1930, RCA controlled the superheterodyne patent, and any radio manufacturer that wanted to build one had to pay royalties to RCA. In 1928 RCA launched their first AC operated superheterodyne radio, the Radiola 60 ($147 in 1928 dollars). [4] All these superhets were large and expensive.