Fred and list, In my case, I take exception to your statement below. I really do!! I built a constant current generator which produces exactly the same constant current from the starting instant to the end. At the moment, it is set for 1.67 ma., which produces approximately 5 PPM/hour. The starting voltage can be over 500 volts, so it can handle very low conductivity distilled water with no added electrolyte. The batch I brewed tonight started out at about 180 volts and ended after two hours at around 15 volts, all at 1.67 ma.
I still don't know the optimum current to set my HVDC generator for. Is there a lower threshold of current (x microamps?) where the energy level is too low to "knock off" silver atoms from the electrode? --Steve ----- Original Message ----- From: Fred To: silver-list@eskimo.com Sent: Sunday, May 21, 2000 10:19 PM Subject: CS>What is best constant current? Constant current has nothing to do with the results, Steve! Those that claim to use it really do not, since starting current is of course much lower! Try current limiting! <SNIP> f...@health2us.com ------------------------------------------------------------------ Steve said: Hi list, I am new to this list, but have designed and experimented with many CS generators over the last few years (I am an EE). But I need some help with the electro-chemistry aspects. For a DC generator, I have seen conflicting recommendations on the best constant current to use. For example, one recommends 20 ma., and another says use less than 1 ma. Some say particle size is smaller when less current and more time is used for a given PPM. What is the list wisdom on the value of constant current to use? I have made both low voltage DC generators (which requires a bit of baking soda for proper conductivity) and high voltage DC generators (which don't need any additive to the steam distilled water). Is the optimum current the same for both low and high voltage constant current generators? Thanks, Steve Young
