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Old 4th Nov 2017, 11:51 pm   #86
Biggles
Rest in Peace
 
Join Date: Feb 2004
Location: Hexham, Northumberland, UK.
Posts: 2,234
Default Re: Memories and other stories from Pye etc PMR engineers.

To try and steer this thread back to the original subject, another little story about a simple human error and it's consequences. Way back when our low band VHF AM mainscheme was in operation (circa 1986), the supervisory system reported all three main transmitters had failed at a site near Coniston. It was in the height of summer and we trundled off to have a look to see what was going on. When we arrived at the site I opened the door to the rather small building housing the equipment only to be met with a wall of super-heated air. We had to leave the door open for quite a while before it was finally cool enough to enter safely. We investigated and found out what had happened. The building cooling fan stat and the heating stat had been reverse wired so that the heating stayed on max and the fan stayed off when the temperature rose. Result; cooked Pye F300AM main Tx's and everything else decidedly over ran. We never did find out who wired it.
Alan.
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