A couple of weeks ago the elderly cheap plastic desk fan we keep on a speaker in the lounge-room started making a horrid clicking noise when oscillating.
Because it was so elderly (and cheap), we figured it had reached the end of its useful life and was time for a replacement. So I took to the InformationSuperhighway and came across this rather interesting piece:
Fortunately after a couple of days, clever Don jiggled the oscillate knob and all horrid clicking disappeared.
Result!
(and savings!)