Years ago "Ole Bob" Berger RIP, designed a CS unit of -- 6 x A's and 6 x C's -- in a circular pattern of 4 inch diameter... centre -- have a 1.5 volt motor centered, the protruding Axel has a stiff wire covering (in my case the hollow covering slips onto the axel and a tiny ring of copper wire is carefully twisted with pliers, thus the copper is stretched to hold the "Stirrer", permanently in place on the axel and it works!!). U use 34 volts power supply DC for my 12 sliver thin rods, the 1.5 volt motor is 20 years old now and I pump up to 10/12 volts to spin at fairly fast stirring rate...the motor takes this higher voltage...I use a separate Wall-Wort dial-able voltage unit...with an attached digital read-put...or U can use D-Cell 1,5 volt battery, I've tried that and works well...
I ahve a multi-meter in the power circuit, where I monitor the Milliamps in real-time (can be switched on and off), this indicates what's happening in the CS brew/distilled water etc -- I dope the 6 litres 2ppm d-water with 200ml of CS used for this purpose to "START" the electrolysis process -- 20 years ago people were using salt as a starter!!! This a dire No-No!!! today we are smarter... Monitoring the Milliamps as they increase in the brew cycle, allows U to stop the process B4 U "over-cook" (this is trial and error and U will over-cook!! Until U have "graphed/carefully observed" your voltage and time and find the "ideal brew time" in relation to TIME/Voltage/PPM with your TDS meter) and if the brew turns darker (after a few days) than a nice light white Wine color -- CLEAR is best I find, just my preference... Bob wrote a small book (he was an Electro Engineer), on his passing I tried to buy the edition from the family -- ahd some great information. simple but technical --- I offered $2K (15 years ago), they refused and the book has disappeared... I have a copy somewhere...I would have kept his name alive... My contribution after 20 plus years... In SILvation...Douglas H -- Australia
