Scott M. Thomas wrote:
>
> How did you determine the temperature?  Do you have a formula?

Ha ha!!! I guess he's got a thermometer! ;o)
-Roman



> -----Original Message-----
> From: Jinx [mailto:joecolquitt@CLEAR.NET.NZ]
> Sent: Wednesday, July 11, 2001 2:47 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Bulb Life
>
> > Assuming 120vac mains, 60w bulb, gives 0.5amp,
> > so you need about a 12 ohm resistor, which drops
> > about 6v. It will dissipate 3w, so use a 10w
> > resistor, which will still get hot.
>
> A 47R 10W (240VAC/60W bulb) reaches 63degC

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