The problems with vacuum tube amplifiers are varied, and it can be a great help to see what problems have been seen before. This book is a list of repairs, sorted by Make and Model to make it easy to find a particular unit you may be working on. This book can help in the understanding of failures in vacuum tube audio and other equipment, and their resolution. I tried to explain what happened, why it happened, what it took to resolve it, and what I...
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