This is the nearest example to the one I had. It had a few nigly problems, the main one being that it "missed" quite badly under load, turned out to be burnt ends on the HT leads.
When we moved to Cornwall, my place of work was accessed by an unmade road, so it was getting shaken about quite badly. Also, when the weather was dry, there was huge amounts of dust, when wet, it was sludgy.
Time to move on.......
