How to power a halogen bulb? - sci.electronics.repair

Mensaje del debate How to power a halogen bulb?
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From: "Homer J Simpson" <nob...@nowhere.com>
Newsgroups: sci.electronics.design,sci.electronics.repair
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Subject: Re: How to power a halogen bulb?
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Date: Thu, 12 Oct 2006 00:39:45 GMT
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"HiC" <brasspl...@xahoo.xom> wrote in message 
news:1NfXg.8058$Y24.1677@newsread4.news.pas.earthlink.net...

> I asked in another thread about a halogen bulb to light a projector. A
> particular DIY project site shows the use of a 12v 20w halogen bulb,
> presumably because that's what the projector they have puts out to the 
> lamp
> socket. However apparently mine, which is uses 21V bulbs and I find that
> when I test the socket, it actually shows about 24V.

21 under load. It'd have a very short life at 24.

> The idea is to splice the halogen bulb on its own mouting into the wires 
> for
> the projector's lamp. However, I assume I can't run a 12v bulb on a 24v
> source, if I can't find a 21v (or 24v?) 20-watt bulb, how would I go about
> rigging (or finding) an independent 12v (or whatever voltage) power supply
> for the halogen bulb?

24 should be available. 
http://www.1000bulbs.com/products.php?cat=MR16-24-Volt-Halogen-Light-Bulbs

Don't screw with the power supply.