I was frequently engaged in planned maintenance at the Fire Research Station (FRS), where some of your sequences were shot. Of particular interest to me at the time was a mercury arc rectifier (bit like a gigantic thermionic valve) that was part of the control system for the 'Burning Building'. T...
I was frequently engaged in planned maintenance at the Fire Research Station (FRS), where some of your sequences were shot. Of particular interest to me at the time was a mercury arc rectifier (bit like a gigantic thermionic valve) that was part of the control system for the 'Burning Building'. T...