> 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

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads