OT: Dual voltage mod for projector lamp

[Ross J Lahlum]

Depending on how much current the bulb takes, you might be able to use an
inrush current limiter,
in other words, a negative temp coeff. thermistor.  Keystone makes some,
and Digi-Key carries them.

73,
Ross

On Sat, 2 Oct 1999 16:51:33 -0500 "Robert M. Bratcher Jr."
<bratcher at PDQ.NET> writes:
>Does anybody know where I could find a solid state schematic for a
>dual
>voltage supply that would give about 30v for perhaps 5 seconds then
>the
>full 120v? Or how to make one? I'd like to extend the life of my
>projector
>bulbs. Sure they go out after about 25 hours but I would love to
>double or
>triple that life. For those of you not on the 2 film collector lists
>bulbs
>cost around $23 apiece.
>
>If your not on the film lists then please respond directly to me. The
>16mmfilm &fcls users can just reply to the list if they wish.
>Thanks very much. I'd like to install something like this in my Kodak
>Pageant.
>
>bratcher at pdq.net
>Robert M. Bratcher Jr.
>
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