Flat Roofs Leak
In the mid-1980s, the flat roof above the large Aerial Tuning Inductor (ATI) coil started to leak, causing minor burning damage to the coil and forcing the shutting down of the GBR transmitter. A plan was devised to suspend a polythene sheet over the top of the coil. The transmitter was brought back on-air and all seemed to be going well until the sheet caught fire.
Luckily there was a ‘Plan B’. An earthed copper draining board was suspended from the ceiling. This board took a while to manufacture and install but it worked and disaster was averted.