Taking it apart, I find a 400 mah nicad battery, (most that size are 2400 mah) a small cds cell to turn the led on and off, thru some sort of a 4 legged ic, the led, and that the 1.5" square solar cell seems to be glued into the top with very good glue, and only has 2 external leads.
The cds cell is about the right size to catch all the laser beam, but so is the led. I've seen leds respond to light like a very inefficient solar cell, but then so will a 1n914, but its junction target is too small. That leaves the cds cell and the led. Since I've beam power to spare even running at a lower voltage than a pair of 393 buttons can muster, I am wondering if I could get a meterable output from the led? Has anyone actually tried it? Brought in a DVM, this led doesn't even make a millivolt with a 100 watt equ led overhead light hitting it from 5 feet. The cds cell reads about 4k with the same light hitting it. Surprisingly the solar cell is only making about 300 millivolts from the same light. So it looks like the cds cell is the best candidate. But I'll also test the solar cell with the laser in the morning, after I put a fresh hose on the hot side of the water heater. 57F in the garage, so I took a pool cue out to reach thru the shelving in front of the AC's wall plug and tripped the AC's gfci test button to shut it off till I reset it. Compressor relay contact is welded up again. I knew it would. Didn't even have to ask Murphy either. Sigh. Way too busy, but it does keep me out of the bars. -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
