-------- In message <29659871.S9XTlaFu4r@linux>, Bruce Griffiths writes:
>To detect 100Hz modulation due to photocurrents in the LEDs the 150W >incandescent bulb had to be placed within a few cm of the LEDs. Incandescent bulbs don't have much "hum" in their light output, they're basically heating elements and they don't cool down nearly fast enough. Try with fluorescent light instead, there's a reason people accuse them of flickering. -- 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. _______________________________________________ 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.