Peter Bang (1900–1957), son of Camillo Bang, a successful Danish businessman, showed great interest in radio technology from an early age. After graduating as an engineer in 1924, he spent six months working in a U.S. radio factory. Upon his return to Denmark, he teamed up with his friend Svend Olufsen (1897–1949), whose parents made the attic of their manor house in Struer in Jutland available for experiments. When they officially opened their business in 1925, Bang concentrated on the technology while Olufsen dealt with business. There were a number of successful developments in the 1930s and 1940s, including a sound recording system for the film industry, roof-mounted loudspeakers for circuses and army vehicles, and the iconic Beolit 39 radio with a Bakelite cabinet.
Beolit 39 from 1938, B&O’s first Radio in Bakelite
It was, however, many years before their business became significantly profitable. The firm suffered a huge setback towards the end of World War II when its factory at Gimsing in Struer in Northwestern Jutland was burnt down by pro-Nazi saboteurs as punishment for the management’s refusal to collaborate with the Germans. Undeterred, Bang and Olufsen rebuilt the factory, producing electric razors until 1955, and then going on to develop a range of radio, radiogram, and television sets, later influenced by designer Ib Fabiansen when he began work for the company in 1957.
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!