Quote:
Originally Posted by yestertech
....The BBC were also very scrupulous about earthing. Mains and 'program' earth kept separate and large copper earth busbars would be found in the back of equipment racks. ....
Andy
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Your story reminds me of one about the building of ITV's now deserted HQ in Central London. During the technical construction phase (for LWT as then) there was an awful lot of wiring going on as you can imagine and there was a great deal of thought applied to ensure the domestic and technical earths remained separate at all times. Apparently every half hour an electric bell would be rung across the construction site and all electrical installation work would stop and the isolation between the technical and domestic earthing measured. If any discrepancy was found any work carried out in the last half hour was simply de-installed and work started again. It meant you didn't have to waste time trying to find out where the problem lay - it was quicker to simply undo what was done and start again. Clever.
In TV terms, I think the average viewer would be quite surprised at the amount of air-conditioning noise there is in a large LE sized studio. It's not as quiet as you might think!