Revox Tape Machine - where to source

The ABC used to have hundreds of them. I don't know if they still have some. I would think that most pro theatres would have had them 10 years ago and they would be sitting on a shelf gathering dust now. In there day a B77 was 2 or 3 thousand dollars, so not the kind of thing you would just throw away, even when you can replace it with a few hundred dollars of hardware and some free software. I'm pretty sure that here in Perth the Maj and the Playhouse still have some. You could try System Sound. I'm sure that they would have had some at on time, and may have one sitting on a shelf somewhere.