Sony began in the wake of World War II. In 1946, Masaru Ibuka started an electronics shop in a department store building in Tokyo. The company had $530 in capital and a total of eight employees. In the following year he was joined by his colleague, Akio Morita, and they founded a company called Tokyo Tsushin Kogyo 東京通信工業 (Tokyo Telecommunications Engineering Corporation). The company built Japan’s first tape recorder, called the Type-G. In 1958 the company changed its name to “Sony”.
When Tokyo Tsushin Kogyo was looking for a romanized name to use to market themselves, they strongly considered using their initials, TTK. The primary reason they did not is that the railway company Tokyo Kyuko was known as TTK. The company occasionally used the acronym “Totsuko” in Japan, but during his visit to the United States, Morita discovered that Americans had trouble pronouncing that name. Another early name that was tried out for a while was “Tokyo Teletech” until Akio Morita discovered that there was an American company already using Teletech as a brand name.
The name “Sony” was chosen for the brand as a mix of two words. One was the Latin word “Sonus”, which is the root of sonic and sound, and the other was “Sonny”, a common slang term used in 1950s America to call a boy. In the 1950s Japan “sonny boys”, was a loan word into Japanese which connoted smart and presentable young men, which Sony founders Akio Morita and Masaru Ibuka considered themselves to be.
The first Sony-branded product, the TR-55 transistor radio, appeared in 1955 but the company name did not change to Sony until January 1958.
1 - Electrolytic capacitors are among the most important in an audio equipment and replacing them with high-quality capacitors from the factory will improve the sound quality
2 - Electrolytic capacitors have life of work 1000-2000h then begin to lose their qualities
3 - The use of Audio-Grade Capacitor Nichicon / Elna which are made specifically for audio equipment from high-end will make your machine in good times higher
What is audio grade capacitor?
This is capacitors specifically for audio applications. These are designed to give premium sound quality when compared to general purpose capacitors. Nichicon's MUSE series and Elna SILMIC II, ideally suited for first class audio equipment where qualitative and quantitative characteristics are required.
What you should know when you make replacement
1 Mark all cables when separate circuit boards to avoid confusion in the assembly
2 All capacitors meet on parameters of old, replace them one by one so as not to get confused!