Hi, I'm late to this thread, but have some experience. Several years ago I did some research on replacing xenon flashlamps in a high speed fluorescence instrument application. As the white LED candidates had phosphor coatings I assumed (don't assume - guess ;-) that they would be too slow. It turned out that they were significantly faster than the xenon lamps, with sharp turn-off rather than the tail of the flashlamp. So don't dismiss white LEDs for modulated applications.
Robert G8RPI. On 11 September 2014 13:14, Chuck Harris <[email protected]> wrote: > Hi Dallas, > > Let us know if it helps. Neons are very fast light sources, and > can switch way faster than the CdS photo resistors can respond. > > A nice red/orange LED should work well with the original CdS > photo resistors. > > -Chuck Harris > > > Dallas Smith wrote: > >> Chuck, >> >> After searching for the wave length of NE2 neon bulbs, I found that the >> spectrum is >> between 600-650nm. So I ordered red-org at 615nm. The white LED's I've >> have do have >> the characteristics you mentioned, Thank you for all your input, maybe >> the results >> will show some improvement. >> >> Dallas >> _______________________________________________ >> volt-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/volt-nuts >> and follow the instructions there. >> > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/volt-nuts > and follow the instructions there. > _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
