Re: The demise of the fluorescent tube
I believe CFL's have two heaters. If one is o/c the lamp may still strike but will take longer to warm up- and will look lopsided during warm-up.
As the heater filaments are mechanically quite rigid what you might have is a break in the filament- which sometimes manages to arc weld itself back together...then breaks again. This could give rise to inconsistent start-ups.
Dave
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