When the two companies disagreed on the patent right, Caesar William bought them. On his order, 1903, on May 27th, both companies set up a wireless telegraph company, and obtained patents and technologies in litigation. On April 7th, 1923, the company changed its name to Firmierung, wireless telegraph association. The telephone number is the telegraph address of this association. The first telephone technical director was Count George von Arco.
1928, Telephon created a new history for the V-4 1 amplifier designed by German Radio. These are the first two stages. Hi-fi amplifier has created a new history of recording. With the passage of time, the telephone technology has been continuously improved, and the 1950 V-72 amplifier was born. TAB (the subcontractor of telephone technology) soon became popular with other radio stations and recording facilities, and finally made a perfect explanation for European recording. V-72S is the only model of the legendary REDD-37 console with amplifier. Today, V-72 is still designed by Telephon, which is the most common and the benchmark for all other electron tubes and microphone preamplifiers more than 50 years later.
In World War II, telephone was an important supplier of radar equipment. Telephon and its subsidiary TELDECT have experienced ups and downs for decades and are also one of the largest record companies in Germany.
1959, Telephon set up a modern semiconductor in Heilbronn and put it into production in April 1960. The output has increased several times rapidly. 1970, a new six-story building rises in the northern part of the region. About 2500 people worked here in the 1970s.
TR4 and TR440 models invented by Dreifengen, ranging from 1970 to 1985, have been selling well in the computing centers of many universities in Germany. 1974 the invention and production of large computers have been separated. The fields of medium-sized computers and program computers are included in the automatic control project of General Electric Power Company.
In 2000, Toni Roger obtained the diamond-shaped logo used in North America and the trademark name of Telephon. Telephony/USA was established in 200 1 early, providing storage services and producing retro telephone microphones. In 2003, Telephony/USA won the nomination award for outstanding creativity of scientific and technological products for the following microphone systems: Telephony/USA M 12 or C 12, R-F-T M 16 MkII and AK47. Ela M25 1 microphone system in telephone history entered the MIX Foundation Hall of Fame in 2006. In 2008, Telephon/ America's new ElaM260 microphone won the Science and Technology Innovation Award.
In 2005, General Electric Power Company Telephon and Berlin General Electric Power Company changed their names to Transradio of SenderSysteme. The historical name "Transradio" can be traced back to 19 18. 19 19 with the launch of duplex transmission of radio communication, the company has been recognized all over the world. Transradio focuses on the research, invention and construction of VHF/ cathode output mixer and DRM transmitter.
In August 2006, it acquired a Turkish company and obtained the trademark law authorized by Profilo Telra, the largest TV equipment manufacturer in Europe, to produce TV sets in the name of a traditional company.