Keith,
The best way to use your 30 volt supply would be to add a constant current diode in series with one of the wires going to your electrodes. See www.mouser.com <http://www.mouser.com/> and search for J504 and J506. These are 0,75 mA and 1.4 mA, respectively, and cost $1.62 each. I would recommend the lower current one. It will take longer to "brew" a batch, but you can probably get away with not needing a stirring mechanism because the natural thermal gradients will do it for you. Having a constant current means you will generate CS at a constant rate which means you can use a timer for fairly repeatable results. Roughly speaking, you can generate a quart of very fine quality CS with 0.75 mA in about 8 hours with a strength of 10 to 15 PPM. Then you should buy a Hanna PWT to make sure you have high purity distilled water to start with. It should read in the 1 to 4 PPM range, lower being better. You can also use the PWT to measure your "brew" to get a rough idea of how many PPM of silver you add to your distilled water. I say rough because the PWT actually measures the conductance of the "brew" which is a measure of silver ions in the water and only an indirect measure of the silver particles. With the above, you don't need to use an LED and resistor. --Steve Y. _____ From: Keithmj [mailto:[email protected]] Sent: Saturday, June 30, 2007 1:56 PM To: Silverlist Subject: CS>CS generator Hi all..Some of my questions have been answered so far but decided to start over again to see what the group says. I have a Radio Shack 30vdc 1000mA power supply that I would like to use but I can change my mind, I have 20" of 12 gauge silver wire. I know that I don't need 1000mA but around 1 mA so I need to know how I can get that. I would like to drop the voltage down to about 18 volts as I heard that it is better to use lower voltage. I really wanted something that will let me have a constant voltage and milliamps but I figure it would drop with batteries. I will need a LED and a resistor but don't know if I need a 1000 ohm or a 2000 ohm resistor or what I will need. Any info would help. What do others use to make quality CS that they have made that doesn't use batteries? I'm going to use the battery setup but wanted to make a ac to dc generator. Thanks..Keithmj <http://i.msgtag.com/aq/ixaxDCFpkp/iaihfa/wujtxhvqrdse/Cq.gif>
