It is a Revox radio, definitely not a dud, but for me it is a dud. Mr. Swiss was an expert on such machines and always got the best. Unfortunately Mrs. Swiss was not an expert. I could switch it on and off and even find the channels, but when he left I realised I had no idea how this wonderful (expensive) machine worked. Since I have discovered that Revox are a collectors item, being the best you could have. They are no longer being manufactured and so I have it on the shelf. I am sure it works perfectly but over my comprehension.