Roman.B wrote: ....... Anyone who built a light chaser or other >incandescent bulb flasher knows the failure rate of >the bulbs if you don't keep the filament hot. :o) And, of course, my 100W GE light bulbs always seems to go pffffft right when I turn on the light switch. I am sure that GE designs the cold resistance of the filaments in such as way as to maximize the retirement payoff for Jack Welch. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body