Hitachi was founded in 1910 by electrical engineer Namihei Odaira in Ibaraki Prefecture. The company’s first product was Japan’s first 5-horsepower electric induction motor, initially developed for use in copper mining. Odaira’s company soon became the domestic leader in electric motors and electric power industry infrastructure.
The company began as an in-house venture of Fusanosuke Kuhara’s mining company in Hitachi, Ibaraki. Odaira moved headquarters to Tokyo in 1918. Long before that, he coined the company’s toponymic name by superimposing two kanji characters: hi meaning “sun” and tachi meaning “rise”. The young company’s national aspirations were conveyed by its original brand mark, which evoked Japan’s imperial rising sun flag.
Hitachi America, Ltd. was established in 1959. Hitachi Europe, Ltd. was established in 1982.
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!