One question, two parts - Do you have any neighbors who are hams or listen to LW or MW (known as "the AM Broadcast band" here in the states) broadcasts? Any sort of SCR or FET based PWM should sound *swell* on those lower bands! I have an SCR wall switch that works well as a broad-band noise source - from LW though 80 Meters (4 MHz). Jim ----- Original Message ----- From: "Dale Botkin" To: Sent: Monday, February 18, 2002 12:21 PM Subject: Re: [EE]: Switching low-voltage AC > On Mon, 18 Feb 2002, Michael Rigby-Jones wrote: > > > But if we are going complex, how about a bridge rectifier in series with the > > lamp, and a FET or bipolar on the output of the bridge rectifier. > > Interesting point -- I could then use a MOSFET and PWM to start the lights > soft, then cut 'em back to a soft glow late at night. Now I realize how > little I know about light bulbs -- these are the little 8W wedge-base > landscape light bulbs intended for 12V operation. Is there any problem > using DC instead of AC, and will running them on a low brightness with PWM > shorten their life, I wonder? > > Dale > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.