The origin, development and history of the stereo system

After using the car, a number of enthusiastic enthusiasts are adapting home-made equipment for use in cars. The commercial launch of the car stereo system was introduced by Galvin Manufacturing Corporation in the 1930's.

Galvin Manufacturing owned and operated by Paul V. Galvin and his brother, Joseph E. Galvin. Galvin Brothers purchased a battery-discounting business in 1928 and the first corporate product was a battery-saver that allowed battery-charging radios to work with normal household power

In 1930, Galvin Corporation introduced the first commercial car radio Motorola model 5T71, sold for $ 110 to $ 130 for almost every popular car.

Made the name of Motorola when the founders, Paul Galvin and Joe Galvin,. The Motorola prefix was chosen because the initial focus was on the automotive industry.

The car stereos system has evolved around the world. In 1932, in Germany, Blaupunkt placed the first radio in a Studebaker and in the United Kingdom, Crossley produced a factory-fitted cord in its 19-horsepower model in 1933. The Car Radio System Began

Early car stereo systems were radio receivers that used the same voltage to run the voltage when the wire was powered by 6.3 volts and generated the high voltage required by a vibrator using a grade transformer drive. Customers required more steps than typical home receivers in order to provide enough profit to allow AGC to mask the fading of signals when the car was traveling around. Not long after the cars were replaced by a 12-volt battery, the same system was used where 12-volt heating appliances were used instead of tubes.

However, Blaupunkt German was in 1952, which was the first to become available FM receivers, this was a step forward in the car stereo system market. With the introduction of the FM receiver, the search function entered.

The search function would allow the user to press a button from one station to another. This was followed by the introduction of semiconductors. The semiconductors have allowed the output stage to switch to a transistor that soon resulted in the elimination of the vibrator and the use of spatial tubes that had only 12 volts on their disk. So a new technological advance has taken place.

the development of electronics over time, this has allowed new additions to the base radio and Motorola. Then the cassette players use the coil to mount the coils. When Phillips joined the compact tape, cassette recorders were also in use in the cars. In 1978, reinforcers were introduced into the markets and then did not look back. Today, car stereos have revolutionized the introduction of CDs and DVDs. Modern cars now have radio, cassette, CD and DVD players, and MP3 or MP4 players. Even the video system is connected to it.

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