Post
by indigolemon » Wed Jan 22, 2014 9:32 am
I had this issue on and off a few years back, turned out crappy halfords bulbs were the problem. The filament wasn't attached properly on one side

One of the reasons I went LED.
'On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.' - Charles Babbage