Paul, No, not the direct light emitted from the LED, but the extra current the cell passed was probably over their limit. I thought of placing the LED's vertical to the Lucite rods, instead of horizontal, or head-on, to decrease the intensity. From the side, a LED, it's much dimmer. The NE-3 bulbs are placed this way, but that's about the only way to get the most intensity from them. Another thought would be to place a filter between the LED's and the rods to dim them down.
What I was going to do was measure the voltage across the CDS cells, with the neon bulbs running, and try to get a LED to create the same voltage drop, or same amount of current through the cell. Best, Will *********** REPLY SEPARATOR *********** On 6/15/2011 at 2:25 PM Poul-Henning Kamp wrote: >In message <201106151021530546.2070a...@smtp.citynet.net>, "Will Matney" writes >: > >>My guess is that the LED's brightness helped kill the CDS cells. > >That is not possible by direct effect, light does not hurt CDS cells. > >It is far more likely that more intense light than designed has decreased >the CDS' resistance causing higher current than was good for them. > > >-- >Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 >p...@freebsd.org | TCP/IP since RFC 956 >FreeBSD committer | BSD since 4.3-tahoe >Never attribute to malice what can adequately be explained by incompetence. > >__________ Information from ESET Smart Security, version of virus signature database 5851 (20110206) __________ > >The message was checked by ESET Smart Security. > >http://www.eset.com _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
