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In the 70s I was employed as the engineer at an advertising agency's television studio.
One of my first jobs was in the preview theatre. The house lights were dimmed by a big Variac. The problem was that the Variac's brushes kept on burning out.
What was the fault?
One of my first jobs was in the preview theatre. The house lights were dimmed by a big Variac. The problem was that the Variac's brushes kept on burning out.
What was the fault?