[ARC5] Halogen Light Power Supplies
Dennis Monticelli
dennis.monticelli at gmail.com
Mon May 4 04:13:29 EDT 2015
Bill,
I have one of those ancient lamps too. Just put a resistor in series to
limit the current. I run mine well below line voltage to insure its
survival. When under-driven the light is orange and rather dim but I still
get a kick out of it.
Dennis AE6C
On Mon, May 4, 2015 at 12:15 AM, Fuqua, Bill L <wlfuqu00 at uky.edu> wrote:
> I have an old carbon filament lamp which is really neat, however, today's
> AC line voltage is a bit more
> than I like to subject it to.
> 73
> Bill wa4lav
>
> ________________________________________
> From: ARC5 [arc5-bounces at mailman.qth.net] on behalf of Phillip Carpenter [
> carpenterpa at tds.net]
> Sent: Sunday, May 03, 2015 8:48 PM
> To: Robert Eleazer
> Cc: <arc5 at mailman.qth.net>
> Subject: Re: [ARC5] Halogen Light Power Supplies
>
> I refuse to use Halogen bulbs anywhere. I had the same problem with the
> only Halogen I ever used being short lived. They are sensitive to skin oil,
> can be finicky, and have been know to cause fires.
>
> I strictly stick with incandescent, fluorescent, and LEDs.
>
> I also refuse to use any bulbs made by GE as they are all life limited by
> design. I prefer Sylvania or Phillips and I also prefer 130VAC incandescent
> bulbs when I use them for longer life given our AC voltage here runs at
> 121.6V.
>
> Respectfully,
>
> Phillip W4RTX
>
> Sent from my iPhone
>
> > On May 3, 2015, at 8:31 PM, Robert Eleazer <releazer at earthlink.net>
> wrote:
> >
> > A while back I mentioned that I have found when I turn on the Halogen
> lights I installed in my kitchen considerable RF noise gets generated.
> >
> > Recently two of the three lights quit working. Tests with a DVOM seemed
> to indicate the power supply was putting out insufficient voltage, so I
> purchased a new power supply on ebay (12V 60VA output) and today finally
> got it installed - and got the same results as the old power supply.
> >
> > Turns out that I had not a bad power supply but two burned out bulbs
> that quit more or less simultaneously. And it appears that the frequency of
> the AC output voltage of both the old and new power supplies is so high as
> to not be readable accurately with a DVOM. No wonder I had so much RFI!
> >
> > In any case, if you are going to check the output of such power supplies
> better use an Oscope.
> >
> > Wayne
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