Congratulations Dan !! I'm no genius, but have the gift of serendipity, that is the art of finding that for which one is not looking. "Ole Bob"
Dan Nave <[email protected]> wrote: Ole Bob you are a genius! I finally got a larger piece (20 gage sheet - 3 ounces) of silver ($70 ;-( and my own cheap Harbor Freight Tools current meter ($5.00 ;-) and tried out my first cell with the wide anode and narrow cathode. The sheet anode is 6" x 3" and the cathode was a piece of 12 gage copper wire about 6" long. I had 5.5 inches of the anode in the distilled water. Incidentally, I made 32 ounces, 1 quart, and the bottle was way too small for the anode but I made it anyway. I brewed it for 1.25 hours and stopped with the current at 13.25 ma (@33.8 VDC). This comes out to about 6.625 ma for 1 hour if you average it out roughly. Rule of thumb calculation gives about 28 ppm liberated silver, and PWT says 27.8 uS. I normally get about 22uS. The current line on the graph was still going straight (not bending to the right) but I stopped it anyway because of the PWT reading. There was some dark buildup on the cathode and it turned silver from plating, but the residue didn't seem excessive compared to the 1 ma current controlled same size anode/cathode system I usually use. The Tyndall was very minimal, can't see it in normal light and appears about 1/4 (subjectively) of what I normally get. This has a slight tint to it. I know that this first attempt was very sloppy, but I was surprised at the speed of the brew, the high PWT reading, and the low Tyndall. Dan
