Re: Starting on the Museum exhibits, ending on them.
Plasma screens. I fixed one a few years ago it had 3 separate power boards with large heavy heat sinks and a shed load of caps on each one. They had paid over £2000 for it and it had been on 12 hours a day for 4 ish years in a pub. £100 for the board and 6 of us to lift it back on to the mounting bracket. They don't build them like that anymore and I think it's still working !