TexasRF@aol.com wrote:
>
> Wonder if any study has been given to the life of these lamps when the turn
> on current is limited. In other words, would the "about ready to fail" time
> be
> increased by providing some turn on current limiting protection? Maybe the
> turn on cycles wears the lamp out more than the actual on hours?
I'm sure I recall a piece by Bob Pease of NatSemi in his 'Pease
Porridge' column in Electronic Design where he talked about adding surge
limiter thermistors to lighting circuits and extending bulb life
enormously. I miss that column a lot these days. I can't remember ever
changing a bulb that's on a dimmer where it's always wound up from zero.
Steve
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