Toshiba 6GB8, which was used as a PA amplifier at the 1964 Tokyo Olympics and the 1970 Osaka Expo. It was made 50 years ago by looking at an article on a rudimentary radio in 1972 when I was a high school student. There was a nostalgic sound. An amp made to listen to Mari Amachi’s records. Memories of sweet and sour failures will be revived.
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